376 files changed, 1713 insertions, 1340 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3269576dbfa8..5a3a78633177 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1793,6 +1793,38 @@ config ZBOOT_ROM_SH_MOBILE_SDHI
 
 endchoice
 
+config ARM_APPENDED_DTB
+        bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
+        depends on OF && !ZBOOT_ROM && EXPERIMENTAL
+        help
+          With this option, the boot code will look for a device tree binary
+          (DTB) appended to zImage
+          (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
+
+          This is meant as a backward compatibility convenience for those
+          systems with a bootloader that can't be upgraded to accommodate
+          the documented boot protocol using a device tree.
+
+          Beware that there is very little in terms of protection against
+          this option being confused by leftover garbage in memory that might
+          look like a DTB header after a reboot if no actual DTB is appended
+          to zImage.  Do not leave this option active in a production kernel
+          if you don't intend to always append a DTB.  Proper passing of the
+          location into r2 of a bootloader provided DTB is always preferable
+          to this option.
+
+config ARM_ATAG_DTB_COMPAT
+        bool "Supplement the appended DTB with traditional ATAG information"
+        depends on ARM_APPENDED_DTB
+        help
+          Some old bootloaders can't be updated to a DTB capable one, yet
+          they provide ATAGs with memory configuration, the ramdisk address,
+          the kernel cmdline string, etc.  Such information is dynamically
+          provided by the bootloader and can't always be stored in a static
+          DTB.  To allow a device tree enabled kernel to be used with such
+          bootloaders, this option allows zImage to extract the information
+          from the ATAG list and store it at run time into the appended DTB.
+
 config CMDLINE
         string "Default kernel command string"
         default ""
diff --git a/arch/arm/boot/compressed/.gitignore b/arch/arm/boot/compressed/.gitignore
index c6028967d336..e0936a148516 100644
--- a/arch/arm/boot/compressed/.gitignore
+++ b/arch/arm/boot/compressed/.gitignore
@@ -5,3 +5,12 @@ piggy.lzo
 piggy.lzma
 vmlinux
 vmlinux.lds
+
+# borrowed libfdt files
+fdt.c
+fdt.h
+fdt_ro.c
+fdt_rw.c
+fdt_wip.c
+libfdt.h
+libfdt_internal.h
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 0c74a6fab952..e4f32a8e002a 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -26,6 +26,10 @@ HEAD	= head.o
 OBJS    += misc.o decompress.o
 FONTC   = $(srctree)/drivers/video/console/font_acorn_8x8.c
 
+# string library code (-Os is enforced to keep it much smaller)
+OBJS            += string.o
+CFLAGS_string.o := -Os
+
 #
 # Architecture dependencies
 #
@@ -89,21 +93,41 @@ suffix_$(CONFIG_KERNEL_GZIP) = gzip
 suffix_$(CONFIG_KERNEL_LZO)  = lzo
 suffix_$(CONFIG_KERNEL_LZMA) = lzma
 
+# Borrowed libfdt files for the ATAG compatibility mode
+
+libfdt          := fdt_rw.c fdt_ro.c fdt_wip.c fdt.c
+libfdt_hdrs     := fdt.h libfdt.h libfdt_internal.h
+
+libfdt_objs     := $(addsuffix .o, $(basename $(libfdt)))
+
+$(addprefix $(obj)/,$(libfdt) $(libfdt_hdrs)): $(obj)/%: $(srctree)/scripts/dtc/libfdt/%
+        $(call cmd,shipped)
+
+$(addprefix $(obj)/,$(libfdt_objs) atags_to_fdt.o): \
+        $(addprefix $(obj)/,$(libfdt_hdrs))
+
+ifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT),y)
+OBJS    += $(libfdt_objs) atags_to_fdt.o
+endif
+
 targets       := vmlinux vmlinux.lds \
                  piggy.$(suffix_y) piggy.$(suffix_y).o \
-                 font.o font.c head.o misc.o $(OBJS)
+                 lib1funcs.o lib1funcs.S font.o font.c head.o misc.o $(OBJS)
 
 # Make sure files are removed during clean
-extra-y       += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S
+extra-y       += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S $(libfdt) $(libfdt_hdrs)
 
 ifeq ($(CONFIG_FUNCTION_TRACER),y)
 ORIG_CFLAGS := $(KBUILD_CFLAGS)
 KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
 endif
 
-ccflags-y := -fpic -fno-builtin
+ccflags-y := -fpic -fno-builtin -I$(obj)
 asflags-y := -Wa,-march=all
 
+# Supply kernel BSS size to the decompressor via a linker symbol.
+KBSS_SZ = $(shell size $(obj)/../../../../vmlinux | awk 'END{print $$3}')
+LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ)
 # Supply ZRELADDR to the decompressor via a linker symbol.
 ifneq ($(CONFIG_AUTO_ZRELADDR),y)
 LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR)
@@ -123,7 +147,7 @@ LDFLAGS_vmlinux += -T
 # For __aeabi_uidivmod
 lib1funcs = $(obj)/lib1funcs.o
 
-$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE
+$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S
         $(call cmd,shipped)
 
 # We need to prevent any GOTOFF relocs being used with references
diff --git a/arch/arm/boot/compressed/atags_to_fdt.c b/arch/arm/boot/compressed/atags_to_fdt.c
new file mode 100644
index 000000000000..6ce11c481178
--- /dev/null
+++ b/arch/arm/boot/compressed/atags_to_fdt.c
@@ -0,0 +1,97 @@
+#include <asm/setup.h>
+#include <libfdt.h>
+
+static int node_offset(void *fdt, const char *node_path)
+{
+        int offset = fdt_path_offset(fdt, node_path);
+        if (offset == -FDT_ERR_NOTFOUND)
+                offset = fdt_add_subnode(fdt, 0, node_path);
+        return offset;
+}
+
+static int setprop(void *fdt, const char *node_path, const char *property,
+                   uint32_t *val_array, int size)
+{
+        int offset = node_offset(fdt, node_path);
+        if (offset < 0)
+                return offset;
+        return fdt_setprop(fdt, offset, property, val_array, size);
+}
+
+static int setprop_string(void *fdt, const char *node_path,
+                          const char *property, const char *string)
+{
+        int offset = node_offset(fdt, node_path);
+        if (offset < 0)
+                return offset;
+        return fdt_setprop_string(fdt, offset, property, string);
+}
+
+static int setprop_cell(void *fdt, const char *node_path,
+                        const char *property, uint32_t val)
+{
+        int offset = node_offset(fdt, node_path);
+        if (offset < 0)
+                return offset;
+        return fdt_setprop_cell(fdt, offset, property, val);
+}
+
+/*
+ * Convert and fold provided ATAGs into the provided FDT.
+ *
+ * REturn values:
+ *    = 0 -> pretend success
+ *    = 1 -> bad ATAG (may retry with another possible ATAG pointer)
+ *    < 0 -> error from libfdt
+ */
+int atags_to_fdt(void *atag_list, void *fdt, int total_space)
+{
+        struct tag *atag = atag_list;
+        uint32_t mem_reg_property[2 * NR_BANKS];
+        int memcount = 0;
+        int ret;
+
+        /* make sure we've got an aligned pointer */
+        if ((u32)atag_list & 0x3)
+                return 1;
+
+        /* if we get a DTB here we're done already */
+        if (*(u32 *)atag_list == fdt32_to_cpu(FDT_MAGIC))
+               return 0;
+
+        /* validate the ATAG */
+        if (atag->hdr.tag != ATAG_CORE ||
+            (atag->hdr.size != tag_size(tag_core) &&
+             atag->hdr.size != 2))
+                return 1;
+
+        /* let's give it all the room it could need */
+        ret = fdt_open_into(fdt, fdt, total_space);
+        if (ret < 0)
+                return ret;
+
+        for_each_tag(atag, atag_list) {
+                if (atag->hdr.tag == ATAG_CMDLINE) {
+                        setprop_string(fdt, "/chosen", "bootargs",
+                                        atag->u.cmdline.cmdline);
+                } else if (atag->hdr.tag == ATAG_MEM) {
+                        if (memcount >= sizeof(mem_reg_property)/4)
+                                continue;
+                        mem_reg_property[memcount++] = cpu_to_fdt32(atag->u.mem.start);
+                        mem_reg_property[memcount++] = cpu_to_fdt32(atag->u.mem.size);
+                } else if (atag->hdr.tag == ATAG_INITRD2) {
+                        uint32_t initrd_start, initrd_size;
+                        initrd_start = atag->u.initrd.start;
+                        initrd_size = atag->u.initrd.size;
+                        setprop_cell(fdt, "/chosen", "linux,initrd-start",
+                                        initrd_start);
+                        setprop_cell(fdt, "/chosen", "linux,initrd-end",
+                                        initrd_start + initrd_size);
+                }
+        }
+
+        if (memcount)
+                setprop(fdt, "/memory", "reg", mem_reg_property, 4*memcount);
+
+        return fdt_pack(fdt);
+}
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index e95a5989602a..9f5ac11ccd8e 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -216,6 +216,103 @@ restart:	adr	r0, LC0
                 mov     r10, r6
 #endif
 
+                mov     r5, #0                  @ init dtb size to 0
+#ifdef CONFIG_ARM_APPENDED_DTB
+/*
+ *   r0  = delta
+ *   r2  = BSS start
+ *   r3  = BSS end
+ *   r4  = final kernel address
+ *   r5  = appended dtb size (still unknown)
+ *   r6  = _edata
+ *   r7  = architecture ID
+ *   r8  = atags/device tree pointer
+ *   r9  = size of decompressed image
+ *   r10 = end of this image, including  bss/stack/malloc space if non XIP
+ *   r11 = GOT start
+ *   r12 = GOT end
+ *   sp  = stack pointer
+ *
+ * if there are device trees (dtb) appended to zImage, advance r10 so that the
+ * dtb data will get relocated along with the kernel if necessary.
+ */
+
+                ldr     lr, [r6, #0]
+#ifndef __ARMEB__
+                ldr     r1, =0xedfe0dd0         @ sig is 0xd00dfeed big endian
+#else
+                ldr     r1, =0xd00dfeed
+#endif
+                cmp     lr, r1
+                bne     dtb_check_done          @ not found
+
+#ifdef CONFIG_ARM_ATAG_DTB_COMPAT
+                /*
+                 * OK... Let's do some funky business here.
+                 * If we do have a DTB appended to zImage, and we do have
+                 * an ATAG list around, we want the later to be translated
+                 * and folded into the former here.  To be on the safe side,
+                 * let's temporarily move  the stack away into the malloc
+                 * area.  No GOT fixup has occurred yet, but none of the
+                 * code we're about to call uses any global variable.
+                */
+                add     sp, sp, #0x10000
+                stmfd   sp!, {r0-r3, ip, lr}
+                mov     r0, r8
+                mov     r1, r6
+                sub     r2, sp, r6
+                bl      atags_to_fdt
+
+                /*
+                 * If returned value is 1, there is no ATAG at the location
+                 * pointed by r8.  Try the typical 0x100 offset from start
+                 * of RAM and hope for the best.
+                 */
+                cmp     r0, #1
+                sub     r0, r4, #(TEXT_OFFSET - 0x100)
+                mov     r1, r6
+                sub     r2, sp, r6
+                blne    atags_to_fdt
+
+                ldmfd   sp!, {r0-r3, ip, lr}
+                sub     sp, sp, #0x10000
+#endif
+
+                mov     r8, r6                  @ use the appended device tree
+
+                /*
+                 * Make sure that the DTB doesn't end up in the final
+                 * kernel's .bss area. To do so, we adjust the decompressed
+                 * kernel size to compensate if that .bss size is larger
+                 * than the relocated code.
+                 */
+                ldr     r5, =_kernel_bss_size
+                adr     r1, wont_overwrite
+                sub     r1, r6, r1
+                subs    r1, r5, r1
+                addhi   r9, r9, r1
+
+                /* Get the dtb's size */
+                ldr     r5, [r6, #4]
+#ifndef __ARMEB__
+                /* convert r5 (dtb size) to little endian */
+                eor     r1, r5, r5, ror #16
+                bic     r1, r1, #0x00ff0000
+                mov     r5, r5, ror #8
+                eor     r5, r5, r1, lsr #8
+#endif
+
+                /* preserve 64-bit alignment */
+                add     r5, r5, #7
+                bic     r5, r5, #7
+
+                /* relocate some pointers past the appended dtb */
+                add     r6, r6, r5
+                add     r10, r10, r5
+                add     sp, sp, r5
+dtb_check_done:
+#endif
+
 /*
  * Check to see if we will overwrite ourselves.
  *   r4  = final kernel address
@@ -223,15 +320,14 @@ restart:	adr	r0, LC0
  *   r10 = end of this image, including  bss/stack/malloc space if non XIP
  * We basically want:
  *   r4 - 16k page directory >= r10 -> OK
- *   r4 + image length <= current position (pc) -> OK
+ *   r4 + image length <= address of wont_overwrite -> OK
  */
                 add     r10, r10, #16384
                 cmp     r4, r10
                 bhs     wont_overwrite
                 add     r10, r4, r9
-   ARM(         cmp     r10, pc         )
- THUMB(         mov     lr, pc          )
- THUMB(         cmp     r10, lr         )
+                adr     r9, wont_overwrite
+                cmp     r10, r9
                 bls     wont_overwrite
 
 /*
@@ -285,14 +381,16 @@ wont_overwrite:
  *   r2  = BSS start
  *   r3  = BSS end
  *   r4  = kernel execution address
+ *   r5  = appended dtb size (0 if not present)
  *   r7  = architecture ID
  *   r8  = atags pointer
  *   r11 = GOT start
  *   r12 = GOT end
  *   sp  = stack pointer
  */
-                teq     r0, #0
+                orrs    r1, r0, r5
                 beq     not_relocated
+
                 add     r11, r11, r0
                 add     r12, r12, r0
 
@@ -307,12 +405,21 @@ wont_overwrite:
 
                 /*
                  * Relocate all entries in the GOT table.
+                 * Bump bss entries to _edata + dtb size
                  */
 1:              ldr     r1, [r11, #0]           @ relocate entries in the GOT
-                add     r1, r1, r0              @ table.  This fixes up the
-                str     r1, [r11], #4           @ C references.
+                add     r1, r1, r0              @ This fixes up C references
+                cmp     r1, r2                  @ if entry >= bss_start &&
+                cmphs   r3, r1                  @       bss_end > entry
+                addhi   r1, r1, r5              @    entry += dtb size
+                str     r1, [r11], #4           @ next entry
                 cmp     r11, r12
                 blo     1b
+
+                /* bump our bss pointers too */
+                add     r2, r2, r5
+                add     r3, r3, r5
+
 #else
 
                 /*
diff --git a/arch/arm/boot/compressed/libfdt_env.h b/arch/arm/boot/compressed/libfdt_env.h
new file mode 100644
index 000000000000..1f4e71876b00
--- /dev/null
+++ b/arch/arm/boot/compressed/libfdt_env.h
@@ -0,0 +1,15 @@
+#ifndef _ARM_LIBFDT_ENV_H
+#define _ARM_LIBFDT_ENV_H
+
+#include <linux/types.h>
+#include <linux/string.h>
+#include <asm/byteorder.h>
+
+#define fdt16_to_cpu(x)         be16_to_cpu(x)
+#define cpu_to_fdt16(x)         cpu_to_be16(x)
+#define fdt32_to_cpu(x)         be32_to_cpu(x)
+#define cpu_to_fdt32(x)         cpu_to_be32(x)
+#define fdt64_to_cpu(x)         be64_to_cpu(x)
+#define cpu_to_fdt64(x)         cpu_to_be64(x)
+
+#endif
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index 832d37236c59..8e2a8fca5ed2 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -18,14 +18,9 @@
 
 unsigned int __machine_arch_type;
 
-#define _LINUX_STRING_H_
-
 #include <linux/compiler.h>     /* for inline */
-#include <linux/types.h>        /* for size_t */
-#include <linux/stddef.h>       /* for NULL */
+#include <linux/types.h>
 #include <linux/linkage.h>
-#include <asm/string.h>
-
 
 static void putstr(const char *ptr);
 extern void error(char *x);
@@ -101,41 +96,6 @@ static void putstr(const char *ptr)
         flush();
 }
 
-
-void *memcpy(void *__dest, __const void *__src, size_t __n)
-{
-        int i = 0;
-        unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
-
-        for (i = __n >> 3; i > 0; i--) {
-                *d++ = *s++;
-                *d++ = *s++;
-                *d++ = *s++;
-                *d++ = *s++;
-                *d++ = *s++;
-                *d++ = *s++;
-                *d++ = *s++;
-                *d++ = *s++;
-        }
-
-        if (__n & 1 << 2) {
-                *d++ = *s++;
-                *d++ = *s++;
-                *d++ = *s++;
-                *d++ = *s++;
-        }
-
-        if (__n & 1 << 1) {
-                *d++ = *s++;
-                *d++ = *s++;
-        }
-
-        if (__n & 1)
-                *d++ = *s++;
-
-        return __dest;
-}
-
 /*
  * gzip declarations
  */
diff --git a/arch/arm/boot/compressed/string.c b/arch/arm/boot/compressed/string.c
new file mode 100644
index 000000000000..36e53ef9200f
--- /dev/null
+++ b/arch/arm/boot/compressed/string.c
@@ -0,0 +1,127 @@
+/*
+ * arch/arm/boot/compressed/string.c
+ *
+ * Small subset of simple string routines
+ */
+
+#include <linux/string.h>
+
+void *memcpy(void *__dest, __const void *__src, size_t __n)
+{
+        int i = 0;
+        unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
+
+        for (i = __n >> 3; i > 0; i--) {
+                *d++ = *s++;
+                *d++ = *s++;
+                *d++ = *s++;
+                *d++ = *s++;
+                *d++ = *s++;
+                *d++ = *s++;
+                *d++ = *s++;
+                *d++ = *s++;
+        }
+
+        if (__n & 1 << 2) {
+                *d++ = *s++;
+                *d++ = *s++;
+                *d++ = *s++;
+                *d++ = *s++;
+        }
+
+        if (__n & 1 << 1) {
+                *d++ = *s++;
+                *d++ = *s++;
+        }
+
+        if (__n & 1)
+                *d++ = *s++;
+
+        return __dest;
+}
+
+void *memmove(void *__dest, __const void *__src, size_t count)
+{
+        unsigned char *d = __dest;
+        const unsigned char *s = __src;
+
+        if (__dest == __src)
+                return __dest;
+
+        if (__dest < __src)
+                return memcpy(__dest, __src, count);
+
+        while (count--)
+                d[count] = s[count];
+        return __dest;
+}
+
+size_t strlen(const char *s)
+{
+        const char *sc = s;
+
+        while (*sc != '\0')
+                sc++;
+        return sc - s;
+}
+
+int memcmp(const void *cs, const void *ct, size_t count)
+{
+        const unsigned char *su1 = cs, *su2 = ct, *end = su1 + count;
+        int res = 0;
+
+        while (su1 < end) {
+                res = *su1++ - *su2++;
+                if (res)
+                        break;
+        }
+        return res;
+}
+
+int strcmp(const char *cs, const char *ct)
+{
+        unsigned char c1, c2;
+        int res = 0;
+
+        do {
+                c1 = *cs++;
+                c2 = *ct++;
+                res = c1 - c2;
+                if (res)
+                        break;
+        } while (c1);
+        return res;
+}
+
+void *memchr(const void *s, int c, size_t count)
+{
+        const unsigned char *p = s;
+
+        while (count--)
+                if ((unsigned char)c == *p++)
+                        return (void *)(p - 1);
+        return NULL;
+}
+
+char *strchr(const char *s, int c)
+{
+        while (*s != (char)c)
+                if (*s++ == '\0')
+                        return NULL;
+        return (char *)s;
+}
+
+#undef memset
+
+void *memset(void *s, int c, size_t count)
+{
+        char *xs = s;
+        while (count--)
+                *xs++ = c;
+        return s;
+}
+
+void __memzero(void *s, size_t count)
+{
+        memset(s, 0, count);
+}
diff --git a/arch/arm/boot/compressed/vmlinux.lds.in b/arch/arm/boot/compressed/vmlinux.lds.in
index 4e728834a1b9..4919f2ac8b89 100644
--- a/arch/arm/boot/compressed/vmlinux.lds.in
+++ b/arch/arm/boot/compressed/vmlinux.lds.in
@@ -51,6 +51,10 @@ SECTIONS
   _got_start = .;
   .got                  : { *(.got) }
   _got_end = .;
+
+  /* ensure the zImage file size is always a multiple of 64 bits */
+  /* (without a dummy byte, ld just ignores the empty section) */
+  .pad                  : { BYTE(0); . = ALIGN(8); }
   _edata = .;
 
   . = BSS_START;
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 7a21d0bf7134..7f27fab9d404 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -205,6 +205,13 @@ extern void *dma_alloc_writecombine(struct device *, size_t, dma_addr_t *,
 int dma_mmap_writecombine(struct device *, struct vm_area_struct *,
                 void *, dma_addr_t, size_t);
 
+/*
+ * This can be called during boot to increase the size of the consistent
+ * DMA region above it's default value of 2MB. It must be called before the
+ * memory allocator is initialised, i.e. before any core_initcall.
+ */
+extern void __init init_consistent_dma_size(unsigned long size);
+
 
 #ifdef CONFIG_DMABOUNCE
 /*
diff --git a/arch/arm/include/asm/hw_breakpoint.h b/arch/arm/include/asm/hw_breakpoint.h
index f389b2704d82..c190bc992f0e 100644
--- a/arch/arm/include/asm/hw_breakpoint.h
+++ b/arch/arm/include/asm/hw_breakpoint.h
@@ -50,6 +50,7 @@ static inline void decode_ctrl_reg(u32 reg,
 #define ARM_DEBUG_ARCH_V6_1     2
 #define ARM_DEBUG_ARCH_V7_ECP14 3
 #define ARM_DEBUG_ARCH_V7_MM    4
+#define ARM_DEBUG_ARCH_V7_1     5
 
 /* Breakpoint */
 #define ARM_BREAKPOINT_EXECUTE  0
@@ -57,6 +58,7 @@ static inline void decode_ctrl_reg(u32 reg,
 /* Watchpoints */
 #define ARM_BREAKPOINT_LOAD     1
 #define ARM_BREAKPOINT_STORE    2
+#define ARM_FSR_ACCESS_MASK     (1 << 11)
 
 /* Privilege Levels */
 #define ARM_BREAKPOINT_PRIV     1
diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
index 217aa1911dd7..727da118bcc1 100644
--- a/arch/arm/include/asm/mach/arch.h
+++ b/arch/arm/include/asm/mach/arch.h
@@ -17,7 +17,7 @@ struct sys_timer;
 struct machine_desc {
         unsigned int            nr;             /* architecture number  */
         const char              *name;          /* architecture name    */
-        unsigned long           boot_params;    /* tagged list          */
+        unsigned long           atag_offset;    /* tagged list (relative) */
         const char              **dt_compat;    /* array of device tree
                                                  * 'compatible' strings */
 
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index b8de516e600e..652fccca4952 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -77,16 +77,7 @@
  */
 #define IOREMAP_MAX_ORDER       24
 
-/*
- * Size of DMA-consistent memory region.  Must be multiple of 2M,
- * between 2MB and 14MB inclusive.
- */
-#ifndef CONSISTENT_DMA_SIZE
-#define CONSISTENT_DMA_SIZE     SZ_2M
-#endif
-
 #define CONSISTENT_END          (0xffe00000UL)
-#define CONSISTENT_BASE         (CONSISTENT_END - CONSISTENT_DMA_SIZE)
 
 #else /* CONFIG_MMU */
 
diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h
index b7e82c4aced6..71d99b83cdb9 100644
--- a/arch/arm/include/asm/pmu.h
+++ b/arch/arm/include/asm/pmu.h
@@ -13,7 +13,12 @@
 #define __ARM_PMU_H__
 
 #include <linux/interrupt.h>
+#include <linux/perf_event.h>
 
+/*
+ * Types of PMUs that can be accessed directly and require mutual
+ * exclusion between profiling tools.
+ */
 enum arm_pmu_type {
         ARM_PMU_DEVICE_CPU      = 0,
         ARM_NUM_PMU_DEVICES,
@@ -37,21 +42,17 @@ struct arm_pmu_platdata {
  * reserve_pmu() - reserve the hardware performance counters
  *
  * Reserve the hardware performance counters in the system for exclusive use.
- * The platform_device for the system is returned on success, ERR_PTR()
- * encoded error on failure.
+ * Returns 0 on success or -EBUSY if the lock is already held.
  */
-extern struct platform_device *
+extern int
 reserve_pmu(enum arm_pmu_type type);
 
 /**
  * release_pmu() - Relinquish control of the performance counters
  *
  * Release the performance counters and allow someone else to use them.
- * Callers must have disabled the counters and released IRQs before calling
- * this. The platform_device returned from reserve_pmu() must be passed as
- * a cookie.
  */
-extern int
+extern void
 release_pmu(enum arm_pmu_type type);
 
 /**
@@ -68,24 +69,78 @@ init_pmu(enum arm_pmu_type type);
 
 #include <linux/err.h>
 
-static inline struct platform_device *
-reserve_pmu(enum arm_pmu_type type)
-{
-        return ERR_PTR(-ENODEV);
-}
-
 static inline int
-release_pmu(enum arm_pmu_type type)
+reserve_pmu(enum arm_pmu_type type)
 {
         return -ENODEV;
 }
 
-static inline int
-init_pmu(enum arm_pmu_type type)
-{
-        return -ENODEV;
-}
+static inline void
+release_pmu(enum arm_pmu_type type)     { }
 
 #endif /* CONFIG_CPU_HAS_PMU */
 
+#ifdef CONFIG_HW_PERF_EVENTS
+
+/* The events for a given PMU register set. */
+struct pmu_hw_events {
+        /*
+         * The events that are active on the PMU for the given index.
+         */
+        struct perf_event       **events;
+
+        /*
+         * A 1 bit for an index indicates that the counter is being used for
+         * an event. A 0 means that the counter can be used.
+         */
+        unsigned long           *used_mask;
+
+        /*
+         * Hardware lock to serialize accesses to PMU registers. Needed for the
+         * read/modify/write sequences.
+         */
+        raw_spinlock_t          pmu_lock;
+};
+
+struct arm_pmu {
+        struct pmu      pmu;
+        enum arm_perf_pmu_ids id;
+        enum arm_pmu_type type;
+        cpumask_t       active_irqs;
+        const char      *name;
+        irqreturn_t     (*handle_irq)(int irq_num, void *dev);
+        void            (*enable)(struct hw_perf_event *evt, int idx);
+        void            (*disable)(struct hw_perf_event *evt, int idx);
+        int             (*get_event_idx)(struct pmu_hw_events *hw_events,
+                                         struct hw_perf_event *hwc);
+        int             (*set_event_filter)(struct hw_perf_event *evt,
+                                            struct perf_event_attr *attr);
+        u32             (*read_counter)(int idx);
+        void            (*write_counter)(int idx, u32 val);
+        void            (*start)(void);
+        void            (*stop)(void);
+        void            (*reset)(void *);
+        int             (*map_event)(struct perf_event *event);
+        int             num_events;
+        atomic_t        active_events;
+        struct mutex    reserve_mutex;
+        u64             max_period;
+        struct platform_device  *plat_device;
+        struct pmu_hw_events    *(*get_hw_events)(void);
+};
+
+#define to_arm_pmu(p) (container_of(p, struct arm_pmu, pmu))
+
+int __init armpmu_register(struct arm_pmu *armpmu, char *name, int type);
+
+u64 armpmu_event_update(struct perf_event *event,
+                        struct hw_perf_event *hwc,
+                        int idx, int overflow);
+
+int armpmu_event_set_period(struct perf_event *event,
+                            struct hw_perf_event *hwc,
+                            int idx);
+
+#endif /* CONFIG_HW_PERF_EVENTS */
+
 #endif /* __ARM_PMU_H__ */
diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c
index a927ca1f5566..5a46225f007e 100644
--- a/arch/arm/kernel/hw_breakpoint.c
+++ b/arch/arm/kernel/hw_breakpoint.c
@@ -45,7 +45,6 @@ static DEFINE_PER_CPU(struct perf_event *, wp_on_reg[ARM_MAX_WRP]);
 
 /* Number of BRP/WRP registers on this CPU. */
 static int core_num_brps;
-static int core_num_reserved_brps;
 static int core_num_wrps;
 
 /* Debug architecture version. */
@@ -137,10 +136,11 @@ static u8 get_debug_arch(void)
         u32 didr;
 
         /* Do we implement the extended CPUID interface? */
-        if (WARN_ONCE((((read_cpuid_id() >> 16) & 0xf) != 0xf),
-            "CPUID feature registers not supported. "
-            "Assuming v6 debug is present.\n"))
+        if (((read_cpuid_id() >> 16) & 0xf) != 0xf) {
+                pr_warning("CPUID feature registers not supported. "
+                           "Assuming v6 debug is present.\n");
                 return ARM_DEBUG_ARCH_V6;
+        }
 
         ARM_DBG_READ(c0, 0, didr);
         return (didr >> 16) & 0xf;
@@ -154,10 +154,21 @@ u8 arch_get_debug_arch(void)
 static int debug_arch_supported(void)
 {
         u8 arch = get_debug_arch();
-        return arch >= ARM_DEBUG_ARCH_V6 && arch <= ARM_DEBUG_ARCH_V7_ECP14;
+
+        /* We don't support the memory-mapped interface. */
+        return (arch >= ARM_DEBUG_ARCH_V6 && arch <= ARM_DEBUG_ARCH_V7_ECP14) ||
+                arch >= ARM_DEBUG_ARCH_V7_1;
+}
+
+/* Determine number of WRP registers available. */
+static int get_num_wrp_resources(void)
+{
+        u32 didr;
+        ARM_DBG_READ(c0, 0, didr);
+        return ((didr >> 28) & 0xf) + 1;
 }
 
-/* Determine number of BRP register available. */
+/* Determine number of BRP registers available. */
 static int get_num_brp_resources(void)
 {
         u32 didr;
@@ -176,9 +187,10 @@ static int core_has_mismatch_brps(void)
 static int get_num_wrps(void)
 {
         /*
-         * FIXME: When a watchpoint fires, the only way to work out which
-         * watchpoint it was is by disassembling the faulting instruction
-         * and working out the address of the memory access.
+         * On debug architectures prior to 7.1, when a watchpoint fires, the
+         * only way to work out which watchpoint it was is by disassembling
+         * the faulting instruction and working out the address of the memory
+         * access.
          *
          * Furthermore, we can only do this if the watchpoint was precise
          * since imprecise watchpoints prevent us from calculating register
@@ -192,36 +204,17 @@ static int get_num_wrps(void)
          * [the ARM ARM states that the DFAR is UNKNOWN, but experience shows
          * that it is set on some implementations].
          */
+        if (get_debug_arch() < ARM_DEBUG_ARCH_V7_1)
+                return 1;
 
-#if 0
-        int wrps;
-        u32 didr;
-        ARM_DBG_READ(c0, 0, didr);
-        wrps = ((didr >> 28) & 0xf) + 1;
-#endif
-        int wrps = 1;
-
-        if (core_has_mismatch_brps() && wrps >= get_num_brp_resources())
-                wrps = get_num_brp_resources() - 1;
-
-        return wrps;
-}
-
-/* We reserve one breakpoint for each watchpoint. */
-static int get_num_reserved_brps(void)
-{
-        if (core_has_mismatch_brps())
-                return get_num_wrps();
-        return 0;
+        return get_num_wrp_resources();
 }
 
 /* Determine number of usable BRPs available. */
 static int get_num_brps(void)
 {
         int brps = get_num_brp_resources();
-        if (core_has_mismatch_brps())
-                brps -= get_num_reserved_brps();
-        return brps;
+        return core_has_mismatch_brps() ? brps - 1 : brps;
 }
 
 /*
@@ -239,7 +232,7 @@ static int enable_monitor_mode(void)
 
         /* Ensure that halting mode is disabled. */
         if (WARN_ONCE(dscr & ARM_DSCR_HDBGEN,
-                        "halting debug mode enabled. Unable to access hardware resources.\n")) {
+                "halting debug mode enabled. Unable to access hardware resources.\n")) {
                 ret = -EPERM;
                 goto out;
         }
@@ -255,6 +248,7 @@ static int enable_monitor_mode(void)
                 ARM_DBG_WRITE(c1, 0, (dscr | ARM_DSCR_MDBGEN));
                 break;
         case ARM_DEBUG_ARCH_V7_ECP14:
+        case ARM_DEBUG_ARCH_V7_1:
                 ARM_DBG_WRITE(c2, 2, (dscr | ARM_DSCR_MDBGEN));
                 break;
         default:
@@ -346,24 +340,10 @@ int arch_install_hw_breakpoint(struct perf_event *bp)
                 val_base = ARM_BASE_BVR;
                 slots = (struct perf_event **)__get_cpu_var(bp_on_reg);
                 max_slots = core_num_brps;
-                if (info->step_ctrl.enabled) {
-                        /* Override the breakpoint data with the step data. */
-                        addr = info->trigger & ~0x3;
-                        ctrl = encode_ctrl_reg(info->step_ctrl);
-                }
         } else {
                 /* Watchpoint */
-                if (info->step_ctrl.enabled) {
-                        /* Install into the reserved breakpoint region. */
-                        ctrl_base = ARM_BASE_BCR + core_num_brps;
-                        val_base = ARM_BASE_BVR + core_num_brps;
-                        /* Override the watchpoint data with the step data. */
-                        addr = info->trigger & ~0x3;
-                        ctrl = encode_ctrl_reg(info->step_ctrl);
-                } else {
-                        ctrl_base = ARM_BASE_WCR;
-                        val_base = ARM_BASE_WVR;
-                }
+                ctrl_base = ARM_BASE_WCR;
+                val_base = ARM_BASE_WVR;
                 slots = (struct perf_event **)__get_cpu_var(wp_on_reg);
                 max_slots = core_num_wrps;
         }
@@ -382,6 +362,17 @@ int arch_install_hw_breakpoint(struct perf_event *bp)
                 goto out;
         }
 
+        /* Override the breakpoint data with the step data. */
+        if (info->step_ctrl.enabled) {
+                addr = info->trigger & ~0x3;
+                ctrl = encode_ctrl_reg(info->step_ctrl);
+                if (info->ctrl.type != ARM_BREAKPOINT_EXECUTE) {
+                        i = 0;
+                        ctrl_base = ARM_BASE_BCR + core_num_brps;
+                        val_base = ARM_BASE_BVR + core_num_brps;
+                }
+        }
+
         /* Setup the address register. */
         write_wb_reg(val_base + i, addr);
 
@@ -405,10 +396,7 @@ void arch_uninstall_hw_breakpoint(struct perf_event *bp)
                 max_slots = core_num_brps;
         } else {
                 /* Watchpoint */
-                if (info->step_ctrl.enabled)
-                        base = ARM_BASE_BCR + core_num_brps;
-                else
-                        base = ARM_BASE_WCR;
+                base = ARM_BASE_WCR;
                 slots = (struct perf_event **)__get_cpu_var(wp_on_reg);
                 max_slots = core_num_wrps;
         }
@@ -426,6 +414,13 @@ void arch_uninstall_hw_breakpoint(struct perf_event *bp)
         if (WARN_ONCE(i == max_slots, "Can't find any breakpoint slot\n"))
                 return;
 
+        /* Ensure that we disable the mismatch breakpoint. */
+        if (info->ctrl.type != ARM_BREAKPOINT_EXECUTE &&
+            info->step_ctrl.enabled) {
+                i = 0;
+                base = ARM_BASE_BCR + core_num_brps;
+        }
+
         /* Reset the control register. */
         write_wb_reg(base + i, 0);
 }
@@ -632,10 +627,9 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
          * we can use the mismatch feature as a poor-man's hardware
          * single-step, but this only works for per-task breakpoints.
          */
-        if (WARN_ONCE(!bp->overflow_handler &&
-                (arch_check_bp_in_kernelspace(bp) || !core_has_mismatch_brps()
-                 || !bp->hw.bp_target),
-                        "overflow handler required but none found\n")) {
+        if (!bp->overflow_handler && (arch_check_bp_in_kernelspace(bp) ||
+            !core_has_mismatch_brps() || !bp->hw.bp_target)) {
+                pr_warning("overflow handler required but none found\n");
                 ret = -EINVAL;
         }
 out:
@@ -666,34 +660,62 @@ static void disable_single_step(struct perf_event *bp)
         arch_install_hw_breakpoint(bp);
 }
 
-static void watchpoint_handler(unsigned long unknown, struct pt_regs *regs)
+static void watchpoint_handler(unsigned long addr, unsigned int fsr,
+                               struct pt_regs *regs)
 {
-        int i;
+        int i, access;
+        u32 val, ctrl_reg, alignment_mask;
         struct perf_event *wp, **slots;
         struct arch_hw_breakpoint *info;
+        struct arch_hw_breakpoint_ctrl ctrl;
 
         slots = (struct perf_event **)__get_cpu_var(wp_on_reg);
 
-        /* Without a disassembler, we can only handle 1 watchpoint. */
-        BUG_ON(core_num_wrps > 1);
-
         for (i = 0; i < core_num_wrps; ++i) {
                 rcu_read_lock();
 
                 wp = slots[i];
 
-                if (wp == NULL) {
-                        rcu_read_unlock();
-                        continue;
-                }
+                if (wp == NULL)
+                        goto unlock;
 
+                info = counter_arch_bp(wp);
                 /*
-                 * The DFAR is an unknown value. Since we only allow a
-                 * single watchpoint, we can set the trigger to the lowest
-                 * possible faulting address.
+                 * The DFAR is an unknown value on debug architectures prior
+                 * to 7.1. Since we only allow a single watchpoint on these
+                 * older CPUs, we can set the trigger to the lowest possible
+                 * faulting address.
                  */
-                info = counter_arch_bp(wp);
-                info->trigger = wp->attr.bp_addr;
+                if (debug_arch < ARM_DEBUG_ARCH_V7_1) {
+                        BUG_ON(i > 0);
+                        info->trigger = wp->attr.bp_addr;
+                } else {
+                        if (info->ctrl.len == ARM_BREAKPOINT_LEN_8)
+                                alignment_mask = 0x7;
+                        else
+                                alignment_mask = 0x3;
+
+                        /* Check if the watchpoint value matches. */
+                        val = read_wb_reg(ARM_BASE_WVR + i);
+                        if (val != (addr & ~alignment_mask))
+                                goto unlock;
+
+                        /* Possible match, check the byte address select. */
+                        ctrl_reg = read_wb_reg(ARM_BASE_WCR + i);
+                        decode_ctrl_reg(ctrl_reg, &ctrl);
+                        if (!((1 << (addr & alignment_mask)) & ctrl.len))
+                                goto unlock;
+
+                        /* Check that the access type matches. */
+                        access = (fsr & ARM_FSR_ACCESS_MASK) ? HW_BREAKPOINT_W :
+                                 HW_BREAKPOINT_R;
+                        if (!(access & hw_breakpoint_type(wp)))
+                                goto unlock;
+
+                        /* We have a winner. */
+                        info->trigger = addr;
+                }
+
                 pr_debug("watchpoint fired: address = 0x%x\n", info->trigger);
                 perf_bp_event(wp, regs);
 
@@ -705,6 +727,7 @@ static void watchpoint_handler(unsigned long unknown, struct pt_regs *regs)
                 if (!wp->overflow_handler)
                         enable_single_step(wp, instruction_pointer(regs));
 
+unlock:
                 rcu_read_unlock();
         }
 }
@@ -717,7 +740,7 @@ static void watchpoint_single_step_handler(unsigned long pc)
 
         slots = (struct perf_event **)__get_cpu_var(wp_on_reg);
 
-        for (i = 0; i < core_num_reserved_brps; ++i) {
+        for (i = 0; i < core_num_wrps; ++i) {
                 rcu_read_lock();
 
                 wp = slots[i];
@@ -820,7 +843,7 @@ static int hw_breakpoint_pending(unsigned long addr, unsigned int fsr,
         case ARM_ENTRY_ASYNC_WATCHPOINT:
                 WARN(1, "Asynchronous watchpoint exception taken. Debugging results may be unreliable\n");
         case ARM_ENTRY_SYNC_WATCHPOINT:
-                watchpoint_handler(addr, regs);
+                watchpoint_handler(addr, fsr, regs);
                 break;
         default:
                 ret = 1; /* Unhandled fault. */
@@ -834,11 +857,31 @@ static int hw_breakpoint_pending(unsigned long addr, unsigned int fsr,
 /*
  * One-time initialisation.
  */
-static void reset_ctrl_regs(void *info)
+static cpumask_t debug_err_mask;
+
+static int debug_reg_trap(struct pt_regs *regs, unsigned int instr)
 {
-        int i, cpu = smp_processor_id();
+        int cpu = smp_processor_id();
+
+        pr_warning("Debug register access (0x%x) caused undefined instruction on CPU %d\n",
+                   instr, cpu);
+
+        /* Set the error flag for this CPU and skip the faulting instruction. */
+        cpumask_set_cpu(cpu, &debug_err_mask);
+        instruction_pointer(regs) += 4;
+        return 0;
+}
+
+static struct undef_hook debug_reg_hook = {
+        .instr_mask     = 0x0fe80f10,
+        .instr_val      = 0x0e000e10,
+        .fn             = debug_reg_trap,
+};
+
+static void reset_ctrl_regs(void *unused)
+{
+        int i, raw_num_brps, err = 0, cpu = smp_processor_id();
         u32 dbg_power;
-        cpumask_t *cpumask = info;
 
         /*
          * v7 debug contains save and restore registers so that debug state
@@ -848,38 +891,52 @@ static void reset_ctrl_regs(void *info)
          * Access Register to avoid taking undefined instruction exceptions
          * later on.
          */
-        if (debug_arch >= ARM_DEBUG_ARCH_V7_ECP14) {
+        switch (debug_arch) {
+        case ARM_DEBUG_ARCH_V7_ECP14:
                 /*
                  * Ensure sticky power-down is clear (i.e. debug logic is
                  * powered up).
                  */
                 asm volatile("mrc p14, 0, %0, c1, c5, 4" : "=r" (dbg_power));
-                if ((dbg_power & 0x1) == 0) {
-                        pr_warning("CPU %d debug is powered down!\n", cpu);
-                        cpumask_or(cpumask, cpumask, cpumask_of(cpu));
-                        return;
-                }
-
+                if ((dbg_power & 0x1) == 0)
+                        err = -EPERM;
+                break;
+        case ARM_DEBUG_ARCH_V7_1:
                 /*
-                 * Unconditionally clear the lock by writing a value
-                 * other than 0xC5ACCE55 to the access register.
+                 * Ensure the OS double lock is clear.
                  */
-                asm volatile("mcr p14, 0, %0, c1, c0, 4" : : "r" (0));
-                isb();
+                asm volatile("mrc p14, 0, %0, c1, c3, 4" : "=r" (dbg_power));
+                if ((dbg_power & 0x1) == 1)
+                        err = -EPERM;
+                break;
+        }
 
-                /*
-                 * Clear any configured vector-catch events before
-                 * enabling monitor mode.
-                 */
-                asm volatile("mcr p14, 0, %0, c0, c7, 0" : : "r" (0));
-                isb();
+        if (err) {
+                pr_warning("CPU %d debug is powered down!\n", cpu);
+                cpumask_or(&debug_err_mask, &debug_err_mask, cpumask_of(cpu));
+                return;
         }
 
+        /*
+         * Unconditionally clear the lock by writing a value
+         * other than 0xC5ACCE55 to the access register.
+         */
+        asm volatile("mcr p14, 0, %0, c1, c0, 4" : : "r" (0));
+        isb();
+
+        /*
+         * Clear any configured vector-catch events before
+         * enabling monitor mode.
+         */
+        asm volatile("mcr p14, 0, %0, c0, c7, 0" : : "r" (0));
+        isb();
+
         if (enable_monitor_mode())
                 return;
 
         /* We must also reset any reserved registers. */
-        for (i = 0; i < core_num_brps + core_num_reserved_brps; ++i) {
+        raw_num_brps = get_num_brp_resources();
+        for (i = 0; i < raw_num_brps; ++i) {
                 write_wb_reg(ARM_BASE_BCR + i, 0UL);
                 write_wb_reg(ARM_BASE_BVR + i, 0UL);
         }
@@ -895,6 +952,7 @@ static int __cpuinit dbg_reset_notify(struct notifier_block *self,
 {
         if (action == CPU_ONLINE)
                 smp_call_function_single((int)cpu, reset_ctrl_regs, NULL, 1);
+
         return NOTIFY_OK;
 }
 
@@ -905,7 +963,6 @@ static struct notifier_block __cpuinitdata dbg_reset_nb = {
 static int __init arch_hw_breakpoint_init(void)
 {
         u32 dscr;
-        cpumask_t cpumask = { CPU_BITS_NONE };
 
         debug_arch = get_debug_arch();
 
@@ -916,28 +973,31 @@ static int __init arch_hw_breakpoint_init(void)
 
         /* Determine how many BRPs/WRPs are available. */
         core_num_brps = get_num_brps();
-        core_num_reserved_brps = get_num_reserved_brps();
         core_num_wrps = get_num_wrps();
 
-        pr_info("found %d breakpoint and %d watchpoint registers.\n",
-                core_num_brps + core_num_reserved_brps, core_num_wrps);
-
-        if (core_num_reserved_brps)
-                pr_info("%d breakpoint(s) reserved for watchpoint "
-                                "single-step.\n", core_num_reserved_brps);
+        /*
+         * We need to tread carefully here because DBGSWENABLE may be
+         * driven low on this core and there isn't an architected way to
+         * determine that.
+         */
+        register_undef_hook(&debug_reg_hook);
 
         /*
          * Reset the breakpoint resources. We assume that a halting
          * debugger will leave the world in a nice state for us.
          */
-        on_each_cpu(reset_ctrl_regs, &cpumask, 1);
-        if (!cpumask_empty(&cpumask)) {
+        on_each_cpu(reset_ctrl_regs, NULL, 1);
+        unregister_undef_hook(&debug_reg_hook);
+        if (!cpumask_empty(&debug_err_mask)) {
                 core_num_brps = 0;
-                core_num_reserved_brps = 0;
                 core_num_wrps = 0;
                 return 0;
         }
 
+        pr_info("found %d " "%s" "breakpoint and %d watchpoint registers.\n",
+                core_num_brps, core_has_mismatch_brps() ? "(+1 reserved) " :
+                "", core_num_wrps);
+
         ARM_DBG_READ(c1, 0, dscr);
         if (dscr & ARM_DSCR_HDBGEN) {
                 max_watchpoint_len = 4;
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 53c9c2610cbc..e6e5d7c84f1a 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -12,6 +12,7 @@
  */
 #define pr_fmt(fmt) "hw perfevents: " fmt
 
+#include <linux/bitmap.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -26,16 +27,8 @@
 #include <asm/pmu.h>
 #include <asm/stacktrace.h>
 
-static struct platform_device *pmu_device;
-
-/*
- * Hardware lock to serialize accesses to PMU registers. Needed for the
- * read/modify/write sequences.
- */
-static DEFINE_RAW_SPINLOCK(pmu_lock);
-
 /*
- * ARMv6 supports a maximum of 3 events, starting from index 1. If we add
+ * ARMv6 supports a maximum of 3 events, starting from index 0. If we add
  * another platform that supports more, we need to increase this to be the
  * largest of all platforms.
  *
@@ -43,62 +36,24 @@ static DEFINE_RAW_SPINLOCK(pmu_lock);
  *  cycle counter CCNT + 31 events counters CNT0..30.
  *  Cortex-A8 has 1+4 counters, Cortex-A9 has 1+6 counters.
  */
-#define ARMPMU_MAX_HWEVENTS             33
+#define ARMPMU_MAX_HWEVENTS             32
 
-/* The events for a given CPU. */
-struct cpu_hw_events {
-        /*
-         * The events that are active on the CPU for the given index. Index 0
-         * is reserved.
-         */
-        struct perf_event       *events[ARMPMU_MAX_HWEVENTS];
-
-        /*
-         * A 1 bit for an index indicates that the counter is being used for
-         * an event. A 0 means that the counter can be used.
-         */
-        unsigned long           used_mask[BITS_TO_LONGS(ARMPMU_MAX_HWEVENTS)];
+static DEFINE_PER_CPU(struct perf_event * [ARMPMU_MAX_HWEVENTS], hw_events);
+static DEFINE_PER_CPU(unsigned long [BITS_TO_LONGS(ARMPMU_MAX_HWEVENTS)], used_mask);
+static DEFINE_PER_CPU(struct pmu_hw_events, cpu_hw_events);
 
-        /*
-         * A 1 bit for an index indicates that the counter is actively being
-         * used.
-         */
-        unsigned long           active_mask[BITS_TO_LONGS(ARMPMU_MAX_HWEVENTS)];
-};
-static DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events);
-
-struct arm_pmu {
-        enum arm_perf_pmu_ids id;
-        const char      *name;
-        irqreturn_t     (*handle_irq)(int irq_num, void *dev);
-        void            (*enable)(struct hw_perf_event *evt, int idx);
-        void            (*disable)(struct hw_perf_event *evt, int idx);
-        int             (*get_event_idx)(struct cpu_hw_events *cpuc,
-                                         struct hw_perf_event *hwc);
-        u32             (*read_counter)(int idx);
-        void            (*write_counter)(int idx, u32 val);
-        void            (*start)(void);
-        void            (*stop)(void);
-        void            (*reset)(void *);
-        const unsigned  (*cache_map)[PERF_COUNT_HW_CACHE_MAX]
-                                    [PERF_COUNT_HW_CACHE_OP_MAX]
-                                    [PERF_COUNT_HW_CACHE_RESULT_MAX];
-        const unsigned  (*event_map)[PERF_COUNT_HW_MAX];
-        u32             raw_event_mask;
-        int             num_events;
-        u64             max_period;
-};
+#define to_arm_pmu(p) (container_of(p, struct arm_pmu, pmu))
 
 /* Set at runtime when we know what CPU type we are. */
-static const struct arm_pmu *armpmu;
+static struct arm_pmu *cpu_pmu;
 
 enum arm_perf_pmu_ids
 armpmu_get_pmu_id(void)
 {
         int id = -ENODEV;
 
-        if (armpmu != NULL)
-                id = armpmu->id;
+        if (cpu_pmu != NULL)
+                id = cpu_pmu->id;
 
         return id;
 }
@@ -109,8 +64,8 @@ armpmu_get_max_events(void)
 {
         int max_events = 0;
 
-        if (armpmu != NULL)
-                max_events = armpmu->num_events;
+        if (cpu_pmu != NULL)
+                max_events = cpu_pmu->num_events;
 
         return max_events;
 }
@@ -130,7 +85,11 @@ EXPORT_SYMBOL_GPL(perf_num_counters);
 #define CACHE_OP_UNSUPPORTED            0xFFFF
 
 static int
-armpmu_map_cache_event(u64 config)
+armpmu_map_cache_event(const unsigned (*cache_map)
+                                      [PERF_COUNT_HW_CACHE_MAX]
+                                      [PERF_COUNT_HW_CACHE_OP_MAX]
+                                      [PERF_COUNT_HW_CACHE_RESULT_MAX],
+                       u64 config)
 {
         unsigned int cache_type, cache_op, cache_result, ret;
 
@@ -146,7 +105,7 @@ armpmu_map_cache_event(u64 config)
         if (cache_result >= PERF_COUNT_HW_CACHE_RESULT_MAX)
                 return -EINVAL;
 
-        ret = (int)(*armpmu->cache_map)[cache_type][cache_op][cache_result];
+        ret = (int)(*cache_map)[cache_type][cache_op][cache_result];
 
         if (ret == CACHE_OP_UNSUPPORTED)
                 return -ENOENT;
@@ -155,23 +114,46 @@ armpmu_map_cache_event(u64 config)
 }
 
 static int
-armpmu_map_event(u64 config)
+armpmu_map_event(const unsigned (*event_map)[PERF_COUNT_HW_MAX], u64 config)
 {
-        int mapping = (*armpmu->event_map)[config];
-        return mapping == HW_OP_UNSUPPORTED ? -EOPNOTSUPP : mapping;
+        int mapping = (*event_map)[config];
+        return mapping == HW_OP_UNSUPPORTED ? -ENOENT : mapping;
 }
 
 static int
-armpmu_map_raw_event(u64 config)
+armpmu_map_raw_event(u32 raw_event_mask, u64 config)
 {
-        return (int)(config & armpmu->raw_event_mask);
+        return (int)(config & raw_event_mask);
 }
 
-static int
+static int map_cpu_event(struct perf_event *event,
+                         const unsigned (*event_map)[PERF_COUNT_HW_MAX],
+                         const unsigned (*cache_map)
+                                        [PERF_COUNT_HW_CACHE_MAX]
+                                        [PERF_COUNT_HW_CACHE_OP_MAX]
+                                        [PERF_COUNT_HW_CACHE_RESULT_MAX],
+                         u32 raw_event_mask)
+{
+        u64 config = event->attr.config;
+
+        switch (event->attr.type) {
+        case PERF_TYPE_HARDWARE:
+                return armpmu_map_event(event_map, config);
+        case PERF_TYPE_HW_CACHE:
+                return armpmu_map_cache_event(cache_map, config);
+        case PERF_TYPE_RAW:
+                return armpmu_map_raw_event(raw_event_mask, config);
+        }
+
+        return -ENOENT;
+}
+
+int
 armpmu_event_set_period(struct perf_event *event,
                         struct hw_perf_event *hwc,
                         int idx)
 {
+        struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
         s64 left = local64_read(&hwc->period_left);
         s64 period = hwc->sample_period;
         int ret = 0;
@@ -202,11 +184,12 @@ armpmu_event_set_period(struct perf_event *event,
         return ret;
 }
 
-static u64
+u64
 armpmu_event_update(struct perf_event *event,
                     struct hw_perf_event *hwc,
                     int idx, int overflow)
 {
+        struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
         u64 delta, prev_raw_count, new_raw_count;
 
 again:
@@ -246,11 +229,9 @@ armpmu_read(struct perf_event *event)
 static void
 armpmu_stop(struct perf_event *event, int flags)
 {
+        struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
         struct hw_perf_event *hwc = &event->hw;
 
-        if (!armpmu)
-                return;
-
         /*
          * ARM pmu always has to update the counter, so ignore
          * PERF_EF_UPDATE, see comments in armpmu_start().
@@ -266,11 +247,9 @@ armpmu_stop(struct perf_event *event, int flags)
 static void
 armpmu_start(struct perf_event *event, int flags)
 {
+        struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
         struct hw_perf_event *hwc = &event->hw;
 
-        if (!armpmu)
-                return;
-
         /*
          * ARM pmu always has to reprogram the period, so ignore
          * PERF_EF_RELOAD, see the comment below.
@@ -293,16 +272,16 @@ armpmu_start(struct perf_event *event, int flags)
 static void
 armpmu_del(struct perf_event *event, int flags)
 {
-        struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+        struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
+        struct pmu_hw_events *hw_events = armpmu->get_hw_events();
         struct hw_perf_event *hwc = &event->hw;
         int idx = hwc->idx;
 
         WARN_ON(idx < 0);
 
-        clear_bit(idx, cpuc->active_mask);
         armpmu_stop(event, PERF_EF_UPDATE);
-        cpuc->events[idx] = NULL;
-        clear_bit(idx, cpuc->used_mask);
+        hw_events->events[idx] = NULL;
+        clear_bit(idx, hw_events->used_mask);
 
         perf_event_update_userpage(event);
 }
@@ -310,7 +289,8 @@ armpmu_del(struct perf_event *event, int flags)
 static int
 armpmu_add(struct perf_event *event, int flags)
 {
-        struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+        struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
+        struct pmu_hw_events *hw_events = armpmu->get_hw_events();
         struct hw_perf_event *hwc = &event->hw;
         int idx;
         int err = 0;
@@ -318,7 +298,7 @@ armpmu_add(struct perf_event *event, int flags)
         perf_pmu_disable(event->pmu);
 
         /* If we don't have a space for the counter then finish early. */
-        idx = armpmu->get_event_idx(cpuc, hwc);
+        idx = armpmu->get_event_idx(hw_events, hwc);
         if (idx < 0) {
                 err = idx;
                 goto out;
@@ -330,8 +310,7 @@ armpmu_add(struct perf_event *event, int flags)
          */
         event->hw.idx = idx;
         armpmu->disable(hwc, idx);
-        cpuc->events[idx] = event;
-        set_bit(idx, cpuc->active_mask);
+        hw_events->events[idx] = event;
 
         hwc->state = PERF_HES_STOPPED | PERF_HES_UPTODATE;
         if (flags & PERF_EF_START)
@@ -345,25 +324,25 @@ out:
         return err;
 }
 
-static struct pmu pmu;
-
 static int
-validate_event(struct cpu_hw_events *cpuc,
+validate_event(struct pmu_hw_events *hw_events,
                struct perf_event *event)
 {
+        struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
         struct hw_perf_event fake_event = event->hw;
+        struct pmu *leader_pmu = event->group_leader->pmu;
 
-        if (event->pmu != &pmu || event->state <= PERF_EVENT_STATE_OFF)
+        if (event->pmu != leader_pmu || event->state <= PERF_EVENT_STATE_OFF)
                 return 1;
 
-        return armpmu->get_event_idx(cpuc, &fake_event) >= 0;
+        return armpmu->get_event_idx(hw_events, &fake_event) >= 0;
 }
 
 static int
 validate_group(struct perf_event *event)
 {
         struct perf_event *sibling, *leader = event->group_leader;
-        struct cpu_hw_events fake_pmu;
+        struct pmu_hw_events fake_pmu;
 
         memset(&fake_pmu, 0, sizeof(fake_pmu));
 
@@ -383,110 +362,119 @@ validate_group(struct perf_event *event)
 
 static irqreturn_t armpmu_platform_irq(int irq, void *dev)
 {
-        struct arm_pmu_platdata *plat = dev_get_platdata(&pmu_device->dev);
+        struct arm_pmu *armpmu = (struct arm_pmu *) dev;
+        struct platform_device *plat_device = armpmu->plat_device;
+        struct arm_pmu_platdata *plat = dev_get_platdata(&plat_device->dev);
 
         return plat->handle_irq(irq, dev, armpmu->handle_irq);
 }
 
+static void
+armpmu_release_hardware(struct arm_pmu *armpmu)
+{
+        int i, irq, irqs;
+        struct platform_device *pmu_device = armpmu->plat_device;
+
+        irqs = min(pmu_device->num_resources, num_possible_cpus());
+
+        for (i = 0; i < irqs; ++i) {
+                if (!cpumask_test_and_clear_cpu(i, &armpmu->active_irqs))
+                        continue;
+                irq = platform_get_irq(pmu_device, i);
+                if (irq >= 0)
+                        free_irq(irq, armpmu);
+        }
+
+        release_pmu(armpmu->type);
+}
+
 static int
-armpmu_reserve_hardware(void)
+armpmu_reserve_hardware(struct arm_pmu *armpmu)
 {
         struct arm_pmu_platdata *plat;
         irq_handler_t handle_irq;
-        int i, err = -ENODEV, irq;
+        int i, err, irq, irqs;
+        struct platform_device *pmu_device = armpmu->plat_device;
 
-        pmu_device = reserve_pmu(ARM_PMU_DEVICE_CPU);
-        if (IS_ERR(pmu_device)) {
+        err = reserve_pmu(armpmu->type);
+        if (err) {
                 pr_warning("unable to reserve pmu\n");
-                return PTR_ERR(pmu_device);
+                return err;
         }
 
-        init_pmu(ARM_PMU_DEVICE_CPU);
-
         plat = dev_get_platdata(&pmu_device->dev);
         if (plat && plat->handle_irq)
                 handle_irq = armpmu_platform_irq;
         else
                 handle_irq = armpmu->handle_irq;
 
-        if (pmu_device->num_resources < 1) {
+        irqs = min(pmu_device->num_resources, num_possible_cpus());
+        if (irqs < 1) {
                 pr_err("no irqs for PMUs defined\n");
                 return -ENODEV;
         }
 
-        for (i = 0; i < pmu_device->num_resources; ++i) {
+        for (i = 0; i < irqs; ++i) {
+                err = 0;
                 irq = platform_get_irq(pmu_device, i);
                 if (irq < 0)
                         continue;
 
+                /*
+                 * If we have a single PMU interrupt that we can't shift,
+                 * assume that we're running on a uniprocessor machine and
+                 * continue. Otherwise, continue without this interrupt.
+                 */
+                if (irq_set_affinity(irq, cpumask_of(i)) && irqs > 1) {
+                        pr_warning("unable to set irq affinity (irq=%d, cpu=%u)\n",
+                                    irq, i);
+                        continue;
+                }
+
                 err = request_irq(irq, handle_irq,
                                   IRQF_DISABLED | IRQF_NOBALANCING,
-                                  "armpmu", NULL);
+                                  "arm-pmu", armpmu);
                 if (err) {
-                        pr_warning("unable to request IRQ%d for ARM perf "
-                                "counters\n", irq);
-                        break;
+                        pr_err("unable to request IRQ%d for ARM PMU counters\n",
+                                irq);
+                        armpmu_release_hardware(armpmu);
+                        return err;
                 }
-        }
 
-        if (err) {
-                for (i = i - 1; i >= 0; --i) {
-                        irq = platform_get_irq(pmu_device, i);
-                        if (irq >= 0)
-                                free_irq(irq, NULL);
-                }
-                release_pmu(ARM_PMU_DEVICE_CPU);
-                pmu_device = NULL;
+                cpumask_set_cpu(i, &armpmu->active_irqs);
         }
 
-        return err;
+        return 0;
 }
 
 static void
-armpmu_release_hardware(void)
+hw_perf_event_destroy(struct perf_event *event)
 {
-        int i, irq;
+        struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
+        atomic_t *active_events  = &armpmu->active_events;
+        struct mutex *pmu_reserve_mutex = &armpmu->reserve_mutex;
 
-        for (i = pmu_device->num_resources - 1; i >= 0; --i) {
-                irq = platform_get_irq(pmu_device, i);
-                if (irq >= 0)
-                        free_irq(irq, NULL);
+        if (atomic_dec_and_mutex_lock(active_events, pmu_reserve_mutex)) {
+                armpmu_release_hardware(armpmu);
+                mutex_unlock(pmu_reserve_mutex);
         }
-        armpmu->stop();
-
-        release_pmu(ARM_PMU_DEVICE_CPU);
-        pmu_device = NULL;
 }
 
-static atomic_t active_events = ATOMIC_INIT(0);
-static DEFINE_MUTEX(pmu_reserve_mutex);
-
-static void
-hw_perf_event_destroy(struct perf_event *event)
+static int
+event_requires_mode_exclusion(struct perf_event_attr *attr)
 {
-        if (atomic_dec_and_mutex_lock(&active_events, &pmu_reserve_mutex)) {
-                armpmu_release_hardware();
-                mutex_unlock(&pmu_reserve_mutex);
-        }
+        return attr->exclude_idle || attr->exclude_user ||
+               attr->exclude_kernel || attr->exclude_hv;
 }
 
 static int
 __hw_perf_event_init(struct perf_event *event)
 {
+        struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
         struct hw_perf_event *hwc = &event->hw;
         int mapping, err;
 
-        /* Decode the generic type into an ARM event identifier. */
-        if (PERF_TYPE_HARDWARE == event->attr.type) {
-                mapping = armpmu_map_event(event->attr.config);
-        } else if (PERF_TYPE_HW_CACHE == event->attr.type) {
-                mapping = armpmu_map_cache_event(event->attr.config);
-        } else if (PERF_TYPE_RAW == event->attr.type) {
-                mapping = armpmu_map_raw_event(event->attr.config);
-        } else {
-                pr_debug("event type %x not supported\n", event->attr.type);
-                return -EOPNOTSUPP;
-        }
+        mapping = armpmu->map_event(event);
 
         if (mapping < 0) {
                 pr_debug("event %x:%llx not supported\n", event->attr.type,
@@ -495,34 +483,31 @@ __hw_perf_event_init(struct perf_event *event)
         }
 
         /*
+         * We don't assign an index until we actually place the event onto
+         * hardware. Use -1 to signify that we haven't decided where to put it
+         * yet. For SMP systems, each core has it's own PMU so we can't do any
+         * clever allocation or constraints checking at this point.
+         */
+        hwc->idx                = -1;
+        hwc->config_base        = 0;
+        hwc->config             = 0;
+        hwc->event_base         = 0;
+
+        /*
          * Check whether we need to exclude the counter from certain modes.
-         * The ARM performance counters are on all of the time so if someone
-         * has asked us for some excludes then we have to fail.
          */
-        if (event->attr.exclude_kernel || event->attr.exclude_user ||
-            event->attr.exclude_hv || event->attr.exclude_idle) {
+        if ((!armpmu->set_event_filter ||
+             armpmu->set_event_filter(hwc, &event->attr)) &&
+             event_requires_mode_exclusion(&event->attr)) {
                 pr_debug("ARM performance counters do not support "
                          "mode exclusion\n");
                 return -EPERM;
         }
 
         /*
-         * We don't assign an index until we actually place the event onto
-         * hardware. Use -1 to signify that we haven't decided where to put it
-         * yet. For SMP systems, each core has it's own PMU so we can't do any
-         * clever allocation or constraints checking at this point.
+         * Store the event encoding into the config_base field.
          */
-        hwc->idx = -1;
-
-        /*
-         * Store the event encoding into the config_base field. config and
-         * event_base are unused as the only 2 things we need to know are
-         * the event mapping and the counter to use. The counter to use is
-         * also the indx and the config_base is the event type.
-         */
-        hwc->config_base            = (unsigned long)mapping;
-        hwc->config                 = 0;
-        hwc->event_base             = 0;
+        hwc->config_base            |= (unsigned long)mapping;
 
         if (!hwc->sample_period) {
                 hwc->sample_period  = armpmu->max_period;
@@ -542,32 +527,23 @@ __hw_perf_event_init(struct perf_event *event)
 
 static int armpmu_event_init(struct perf_event *event)
 {
+        struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
         int err = 0;
+        atomic_t *active_events = &armpmu->active_events;
 
-        switch (event->attr.type) {
-        case PERF_TYPE_RAW:
-        case PERF_TYPE_HARDWARE:
-        case PERF_TYPE_HW_CACHE:
-                break;
-
-        default:
+        if (armpmu->map_event(event) == -ENOENT)
                 return -ENOENT;
-        }
-
-        if (!armpmu)
-                return -ENODEV;
 
         event->destroy = hw_perf_event_destroy;
 
-        if (!atomic_inc_not_zero(&active_events)) {
-                mutex_lock(&pmu_reserve_mutex);
-                if (atomic_read(&active_events) == 0) {
-                        err = armpmu_reserve_hardware();
-                }
+        if (!atomic_inc_not_zero(active_events)) {
+                mutex_lock(&armpmu->reserve_mutex);
+                if (atomic_read(active_events) == 0)
+                        err = armpmu_reserve_hardware(armpmu);
 
                 if (!err)
-                        atomic_inc(&active_events);
-                mutex_unlock(&pmu_reserve_mutex);
+                        atomic_inc(active_events);
+                mutex_unlock(&armpmu->reserve_mutex);
         }
 
         if (err)
@@ -582,22 +558,9 @@ static int armpmu_event_init(struct perf_event *event)
 
 static void armpmu_enable(struct pmu *pmu)
 {
-        /* Enable all of the perf events on hardware. */
-        int idx, enabled = 0;
-        struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
-
-        if (!armpmu)
-                return;
-
-        for (idx = 0; idx <= armpmu->num_events; ++idx) {
-                struct perf_event *event = cpuc->events[idx];
-
-                if (!event)
-                        continue;
-
-                armpmu->enable(&event->hw, idx);
-                enabled = 1;
-        }
+        struct arm_pmu *armpmu = to_arm_pmu(pmu);
+        struct pmu_hw_events *hw_events = armpmu->get_hw_events();
+        int enabled = bitmap_weight(hw_events->used_mask, armpmu->num_events);
 
         if (enabled)
                 armpmu->start();
@@ -605,20 +568,32 @@ static void armpmu_enable(struct pmu *pmu)
 
 static void armpmu_disable(struct pmu *pmu)
 {
-        if (armpmu)
-                armpmu->stop();
+        struct arm_pmu *armpmu = to_arm_pmu(pmu);
+        armpmu->stop();
 }
 
-static struct pmu pmu = {
-        .pmu_enable     = armpmu_enable,
-        .pmu_disable    = armpmu_disable,
-        .event_init     = armpmu_event_init,
-        .add            = armpmu_add,
-        .del            = armpmu_del,
-        .start          = armpmu_start,
-        .stop           = armpmu_stop,
-        .read           = armpmu_read,
-};
+static void __init armpmu_init(struct arm_pmu *armpmu)
+{
+        atomic_set(&armpmu->active_events, 0);
+        mutex_init(&armpmu->reserve_mutex);
+
+        armpmu->pmu = (struct pmu) {
+                .pmu_enable     = armpmu_enable,
+                .pmu_disable    = armpmu_disable,
+                .event_init     = armpmu_event_init,
+                .add            = armpmu_add,
+                .del            = armpmu_del,
+                .start          = armpmu_start,
+                .stop           = armpmu_stop,
+                .read           = armpmu_read,
+        };
+}
+
+int __init armpmu_register(struct arm_pmu *armpmu, char *name, int type)
+{
+        armpmu_init(armpmu);
+        return perf_pmu_register(&armpmu->pmu, name, type);
+}
 
 /* Include the PMU-specific implementations. */
 #include "perf_event_xscale.c"
@@ -630,14 +605,72 @@ static struct pmu pmu = {
  * This requires SMP to be available, so exists as a separate initcall.
  */
 static int __init
-armpmu_reset(void)
+cpu_pmu_reset(void)
+{
+        if (cpu_pmu && cpu_pmu->reset)
+                return on_each_cpu(cpu_pmu->reset, NULL, 1);
+        return 0;
+}
+arch_initcall(cpu_pmu_reset);
+
+/*
+ * PMU platform driver and devicetree bindings.
+ */
+static struct of_device_id armpmu_of_device_ids[] = {
+        {.compatible = "arm,cortex-a9-pmu"},
+        {.compatible = "arm,cortex-a8-pmu"},
+        {.compatible = "arm,arm1136-pmu"},
+        {.compatible = "arm,arm1176-pmu"},
+        {},
+};
+
+static struct platform_device_id armpmu_plat_device_ids[] = {
+        {.name = "arm-pmu"},
+        {},
+};
+
+static int __devinit armpmu_device_probe(struct platform_device *pdev)
 {
-        if (armpmu && armpmu->reset)
-                return on_each_cpu(armpmu->reset, NULL, 1);
+        cpu_pmu->plat_device = pdev;
         return 0;
 }
-arch_initcall(armpmu_reset);
 
+static struct platform_driver armpmu_driver = {
+        .driver         = {
+                .name   = "arm-pmu",
+                .of_match_table = armpmu_of_device_ids,
+        },
+        .probe          = armpmu_device_probe,
+        .id_table       = armpmu_plat_device_ids,
+};
+
+static int __init register_pmu_driver(void)
+{
+        return platform_driver_register(&armpmu_driver);
+}
+device_initcall(register_pmu_driver);
+
+static struct pmu_hw_events *armpmu_get_cpu_events(void)
+{
+        return &__get_cpu_var(cpu_hw_events);
+}
+
+static void __init cpu_pmu_init(struct arm_pmu *armpmu)
+{
+        int cpu;
+        for_each_possible_cpu(cpu) {
+                struct pmu_hw_events *events = &per_cpu(cpu_hw_events, cpu);
+                events->events = per_cpu(hw_events, cpu);
+                events->used_mask = per_cpu(used_mask, cpu);
+                raw_spin_lock_init(&events->pmu_lock);
+        }
+        armpmu->get_hw_events = armpmu_get_cpu_events;
+        armpmu->type = ARM_PMU_DEVICE_CPU;
+}
+
+/*
+ * CPU PMU identification and registration.
+ */
 static int __init
 init_hw_perf_events(void)
 {
@@ -651,22 +684,22 @@ init_hw_perf_events(void)
                 case 0xB360:    /* ARM1136 */
                 case 0xB560:    /* ARM1156 */
                 case 0xB760:    /* ARM1176 */
-                        armpmu = armv6pmu_init();
+                        cpu_pmu = armv6pmu_init();
                         break;
                 case 0xB020:    /* ARM11mpcore */
-                        armpmu = armv6mpcore_pmu_init();
+                        cpu_pmu = armv6mpcore_pmu_init();
                         break;
                 case 0xC080:    /* Cortex-A8 */
-                        armpmu = armv7_a8_pmu_init();
+                        cpu_pmu = armv7_a8_pmu_init();
                         break;
                 case 0xC090:    /* Cortex-A9 */
-                        armpmu = armv7_a9_pmu_init();
+                        cpu_pmu = armv7_a9_pmu_init();
                         break;
                 case 0xC050:    /* Cortex-A5 */
-                        armpmu = armv7_a5_pmu_init();
+                        cpu_pmu = armv7_a5_pmu_init();
                         break;
                 case 0xC0F0:    /* Cortex-A15 */
-                        armpmu = armv7_a15_pmu_init();
+                        cpu_pmu = armv7_a15_pmu_init();
                         break;
                 }
         /* Intel CPUs [xscale]. */
@@ -674,23 +707,23 @@ init_hw_perf_events(void)
                 part_number = (cpuid >> 13) & 0x7;
                 switch (part_number) {
                 case 1:
-                        armpmu = xscale1pmu_init();
+                        cpu_pmu = xscale1pmu_init();
                         break;
                 case 2:
-                        armpmu = xscale2pmu_init();
+                        cpu_pmu = xscale2pmu_init();
                         break;
                 }
         }
 
-        if (armpmu) {
+        if (cpu_pmu) {
                 pr_info("enabled with %s PMU driver, %d counters available\n",
-                        armpmu->name, armpmu->num_events);
+                        cpu_pmu->name, cpu_pmu->num_events);
+                cpu_pmu_init(cpu_pmu);
+                armpmu_register(cpu_pmu, "cpu", PERF_TYPE_RAW);
         } else {
                 pr_info("no hardware support available\n");
         }
 
-        perf_pmu_register(&pmu, "cpu", PERF_TYPE_RAW);
-
         return 0;
 }
 early_initcall(init_hw_perf_events);
diff --git a/arch/arm/kernel/perf_event_v6.c b/arch/arm/kernel/perf_event_v6.c
index dd7f3b9f4cb3..e63d8115c01b 100644
--- a/arch/arm/kernel/perf_event_v6.c
+++ b/arch/arm/kernel/perf_event_v6.c
@@ -54,7 +54,7 @@ enum armv6_perf_types {
 };
 
 enum armv6_counters {
-        ARMV6_CYCLE_COUNTER = 1,
+        ARMV6_CYCLE_COUNTER = 0,
         ARMV6_COUNTER0,
         ARMV6_COUNTER1,
 };
@@ -433,6 +433,7 @@ armv6pmu_enable_event(struct hw_perf_event *hwc,
                       int idx)
 {
         unsigned long val, mask, evt, flags;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
         if (ARMV6_CYCLE_COUNTER == idx) {
                 mask    = 0;
@@ -454,12 +455,29 @@ armv6pmu_enable_event(struct hw_perf_event *hwc,
          * Mask out the current event and set the counter to count the event
          * that we're interested in.
          */
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         val = armv6_pmcr_read();
         val &= ~mask;
         val |= evt;
         armv6_pmcr_write(val);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
+}
+
+static int counter_is_active(unsigned long pmcr, int idx)
+{
+        unsigned long mask = 0;
+        if (idx == ARMV6_CYCLE_COUNTER)
+                mask = ARMV6_PMCR_CCOUNT_IEN;
+        else if (idx == ARMV6_COUNTER0)
+                mask = ARMV6_PMCR_COUNT0_IEN;
+        else if (idx == ARMV6_COUNTER1)
+                mask = ARMV6_PMCR_COUNT1_IEN;
+
+        if (mask)
+                return pmcr & mask;
+
+        WARN_ONCE(1, "invalid counter number (%d)\n", idx);
+        return 0;
 }
 
 static irqreturn_t
@@ -468,7 +486,7 @@ armv6pmu_handle_irq(int irq_num,
 {
         unsigned long pmcr = armv6_pmcr_read();
         struct perf_sample_data data;
-        struct cpu_hw_events *cpuc;
+        struct pmu_hw_events *cpuc;
         struct pt_regs *regs;
         int idx;
 
@@ -487,11 +505,11 @@ armv6pmu_handle_irq(int irq_num,
         perf_sample_data_init(&data, 0);
 
         cpuc = &__get_cpu_var(cpu_hw_events);
-        for (idx = 0; idx <= armpmu->num_events; ++idx) {
+        for (idx = 0; idx < cpu_pmu->num_events; ++idx) {
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
-                if (!test_bit(idx, cpuc->active_mask))
+                if (!counter_is_active(pmcr, idx))
                         continue;
 
                 /*
@@ -508,7 +526,7 @@ armv6pmu_handle_irq(int irq_num,
                         continue;
 
                 if (perf_event_overflow(event, &data, regs))
-                        armpmu->disable(hwc, idx);
+                        cpu_pmu->disable(hwc, idx);
         }
 
         /*
@@ -527,28 +545,30 @@ static void
 armv6pmu_start(void)
 {
         unsigned long flags, val;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         val = armv6_pmcr_read();
         val |= ARMV6_PMCR_ENABLE;
         armv6_pmcr_write(val);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static void
 armv6pmu_stop(void)
 {
         unsigned long flags, val;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         val = armv6_pmcr_read();
         val &= ~ARMV6_PMCR_ENABLE;
         armv6_pmcr_write(val);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static int
-armv6pmu_get_event_idx(struct cpu_hw_events *cpuc,
+armv6pmu_get_event_idx(struct pmu_hw_events *cpuc,
                        struct hw_perf_event *event)
 {
         /* Always place a cycle counter into the cycle counter. */
@@ -578,6 +598,7 @@ armv6pmu_disable_event(struct hw_perf_event *hwc,
                        int idx)
 {
         unsigned long val, mask, evt, flags;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
         if (ARMV6_CYCLE_COUNTER == idx) {
                 mask    = ARMV6_PMCR_CCOUNT_IEN;
@@ -598,12 +619,12 @@ armv6pmu_disable_event(struct hw_perf_event *hwc,
          * of ETM bus signal assertion cycles. The external reporting should
          * be disabled and so this should never increment.
          */
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         val = armv6_pmcr_read();
         val &= ~mask;
         val |= evt;
         armv6_pmcr_write(val);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static void
@@ -611,6 +632,7 @@ armv6mpcore_pmu_disable_event(struct hw_perf_event *hwc,
                               int idx)
 {
         unsigned long val, mask, flags, evt = 0;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
         if (ARMV6_CYCLE_COUNTER == idx) {
                 mask    = ARMV6_PMCR_CCOUNT_IEN;
@@ -627,15 +649,21 @@ armv6mpcore_pmu_disable_event(struct hw_perf_event *hwc,
          * Unlike UP ARMv6, we don't have a way of stopping the counters. We
          * simply disable the interrupt reporting.
          */
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         val = armv6_pmcr_read();
         val &= ~mask;
         val |= evt;
         armv6_pmcr_write(val);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
+}
+
+static int armv6_map_event(struct perf_event *event)
+{
+        return map_cpu_event(event, &armv6_perf_map,
+                                &armv6_perf_cache_map, 0xFF);
 }
 
-static const struct arm_pmu armv6pmu = {
+static struct arm_pmu armv6pmu = {
         .id                     = ARM_PERF_PMU_ID_V6,
         .name                   = "v6",
         .handle_irq             = armv6pmu_handle_irq,
@@ -646,14 +674,12 @@ static const struct arm_pmu armv6pmu = {
         .get_event_idx          = armv6pmu_get_event_idx,
         .start                  = armv6pmu_start,
         .stop                   = armv6pmu_stop,
-        .cache_map              = &armv6_perf_cache_map,
-        .event_map              = &armv6_perf_map,
-        .raw_event_mask         = 0xFF,
+        .map_event              = armv6_map_event,
         .num_events             = 3,
         .max_period             = (1LLU << 32) - 1,
 };
 
-static const struct arm_pmu *__init armv6pmu_init(void)
+static struct arm_pmu *__init armv6pmu_init(void)
 {
         return &armv6pmu;
 }
@@ -665,7 +691,14 @@ static const struct arm_pmu *__init armv6pmu_init(void)
  * disable the interrupt reporting and update the event. When unthrottling we
  * reset the period and enable the interrupt reporting.
  */
-static const struct arm_pmu armv6mpcore_pmu = {
+
+static int armv6mpcore_map_event(struct perf_event *event)
+{
+        return map_cpu_event(event, &armv6mpcore_perf_map,
+                                &armv6mpcore_perf_cache_map, 0xFF);
+}
+
+static struct arm_pmu armv6mpcore_pmu = {
         .id                     = ARM_PERF_PMU_ID_V6MP,
         .name                   = "v6mpcore",
         .handle_irq             = armv6pmu_handle_irq,
@@ -676,24 +709,22 @@ static const struct arm_pmu armv6mpcore_pmu = {
         .get_event_idx          = armv6pmu_get_event_idx,
         .start                  = armv6pmu_start,
         .stop                   = armv6pmu_stop,
-        .cache_map              = &armv6mpcore_perf_cache_map,
-        .event_map              = &armv6mpcore_perf_map,
-        .raw_event_mask         = 0xFF,
+        .map_event              = armv6mpcore_map_event,
         .num_events             = 3,
         .max_period             = (1LLU << 32) - 1,
 };
 
-static const struct arm_pmu *__init armv6mpcore_pmu_init(void)
+static struct arm_pmu *__init armv6mpcore_pmu_init(void)
 {
         return &armv6mpcore_pmu;
 }
 #else
-static const struct arm_pmu *__init armv6pmu_init(void)
+static struct arm_pmu *__init armv6pmu_init(void)
 {
         return NULL;
 }
 
-static const struct arm_pmu *__init armv6mpcore_pmu_init(void)
+static struct arm_pmu *__init armv6mpcore_pmu_init(void)
 {
         return NULL;
 }
diff --git a/arch/arm/kernel/perf_event_v7.c b/arch/arm/kernel/perf_event_v7.c
index 4c851834f68e..98b75738345e 100644
--- a/arch/arm/kernel/perf_event_v7.c
+++ b/arch/arm/kernel/perf_event_v7.c
@@ -17,6 +17,9 @@
  */
 
 #ifdef CONFIG_CPU_V7
+
+static struct arm_pmu armv7pmu;
+
 /*
  * Common ARMv7 event types
  *
@@ -676,23 +679,24 @@ static const unsigned armv7_a15_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
 };
 
 /*
- * Perf Events counters
+ * Perf Events' indices
  */
-enum armv7_counters {
-        ARMV7_CYCLE_COUNTER             = 1,    /* Cycle counter */
-        ARMV7_COUNTER0                  = 2,    /* First event counter */
-};
+#define ARMV7_IDX_CYCLE_COUNTER 0
+#define ARMV7_IDX_COUNTER0      1
+#define ARMV7_IDX_COUNTER_LAST  (ARMV7_IDX_CYCLE_COUNTER + cpu_pmu->num_events - 1)
+
+#define ARMV7_MAX_COUNTERS      32
+#define ARMV7_COUNTER_MASK      (ARMV7_MAX_COUNTERS - 1)
 
 /*
- * The cycle counter is ARMV7_CYCLE_COUNTER.
- * The first event counter is ARMV7_COUNTER0.
- * The last event counter is (ARMV7_COUNTER0 + armpmu->num_events - 1).
+ * ARMv7 low level PMNC access
  */
-#define ARMV7_COUNTER_LAST      (ARMV7_COUNTER0 + armpmu->num_events - 1)
 
 /*
- * ARMv7 low level PMNC access
+ * Perf Event to low level counters mapping
  */
+#define ARMV7_IDX_TO_COUNTER(x) \
+        (((x) - ARMV7_IDX_COUNTER0) & ARMV7_COUNTER_MASK)
 
 /*
  * Per-CPU PMNC: config reg
@@ -708,103 +712,76 @@ enum armv7_counters {
 #define ARMV7_PMNC_MASK         0x3f     /* Mask for writable bits */
 
 /*
- * Available counters
- */
-#define ARMV7_CNT0              0       /* First event counter */
-#define ARMV7_CCNT              31      /* Cycle counter */
-
-/* Perf Event to low level counters mapping */
-#define ARMV7_EVENT_CNT_TO_CNTx (ARMV7_COUNTER0 - ARMV7_CNT0)
-
-/*
- * CNTENS: counters enable reg
- */
-#define ARMV7_CNTENS_P(idx)     (1 << (idx - ARMV7_EVENT_CNT_TO_CNTx))
-#define ARMV7_CNTENS_C          (1 << ARMV7_CCNT)
-
-/*
- * CNTENC: counters disable reg
- */
-#define ARMV7_CNTENC_P(idx)     (1 << (idx - ARMV7_EVENT_CNT_TO_CNTx))
-#define ARMV7_CNTENC_C          (1 << ARMV7_CCNT)
-
-/*
- * INTENS: counters overflow interrupt enable reg
- */
-#define ARMV7_INTENS_P(idx)     (1 << (idx - ARMV7_EVENT_CNT_TO_CNTx))
-#define ARMV7_INTENS_C          (1 << ARMV7_CCNT)
-
-/*
- * INTENC: counters overflow interrupt disable reg
- */
-#define ARMV7_INTENC_P(idx)     (1 << (idx - ARMV7_EVENT_CNT_TO_CNTx))
-#define ARMV7_INTENC_C          (1 << ARMV7_CCNT)
-
-/*
- * EVTSEL: Event selection reg
+ * FLAG: counters overflow flag status reg
  */
-#define ARMV7_EVTSEL_MASK       0xff            /* Mask for writable bits */
+#define ARMV7_FLAG_MASK         0xffffffff      /* Mask for writable bits */
+#define ARMV7_OVERFLOWED_MASK   ARMV7_FLAG_MASK
 
 /*
- * SELECT: Counter selection reg
+ * PMXEVTYPER: Event selection reg
  */
-#define ARMV7_SELECT_MASK       0x1f            /* Mask for writable bits */
+#define ARMV7_EVTYPE_MASK       0xc00000ff      /* Mask for writable bits */
+#define ARMV7_EVTYPE_EVENT      0xff            /* Mask for EVENT bits */
 
 /*
- * FLAG: counters overflow flag status reg
+ * Event filters for PMUv2
  */
-#define ARMV7_FLAG_P(idx)       (1 << (idx - ARMV7_EVENT_CNT_TO_CNTx))
-#define ARMV7_FLAG_C            (1 << ARMV7_CCNT)
-#define ARMV7_FLAG_MASK         0xffffffff      /* Mask for writable bits */
-#define ARMV7_OVERFLOWED_MASK   ARMV7_FLAG_MASK
+#define ARMV7_EXCLUDE_PL1       (1 << 31)
+#define ARMV7_EXCLUDE_USER      (1 << 30)
+#define ARMV7_INCLUDE_HYP       (1 << 27)
 
-static inline unsigned long armv7_pmnc_read(void)
+static inline u32 armv7_pmnc_read(void)
 {
         u32 val;
         asm volatile("mrc p15, 0, %0, c9, c12, 0" : "=r"(val));
         return val;
 }
 
-static inline void armv7_pmnc_write(unsigned long val)
+static inline void armv7_pmnc_write(u32 val)
 {
         val &= ARMV7_PMNC_MASK;
         isb();
         asm volatile("mcr p15, 0, %0, c9, c12, 0" : : "r"(val));
 }
 
-static inline int armv7_pmnc_has_overflowed(unsigned long pmnc)
+static inline int armv7_pmnc_has_overflowed(u32 pmnc)
 {
         return pmnc & ARMV7_OVERFLOWED_MASK;
 }
 
-static inline int armv7_pmnc_counter_has_overflowed(unsigned long pmnc,
-                                        enum armv7_counters counter)
+static inline int armv7_pmnc_counter_valid(int idx)
+{
+        return idx >= ARMV7_IDX_CYCLE_COUNTER && idx <= ARMV7_IDX_COUNTER_LAST;
+}
+
+static inline int armv7_pmnc_counter_has_overflowed(u32 pmnc, int idx)
 {
         int ret = 0;
+        u32 counter;
 
-        if (counter == ARMV7_CYCLE_COUNTER)
-                ret = pmnc & ARMV7_FLAG_C;
-        else if ((counter >= ARMV7_COUNTER0) && (counter <= ARMV7_COUNTER_LAST))
-                ret = pmnc & ARMV7_FLAG_P(counter);
-        else
+        if (!armv7_pmnc_counter_valid(idx)) {
                 pr_err("CPU%u checking wrong counter %d overflow status\n",
-                        smp_processor_id(), counter);
+                        smp_processor_id(), idx);
+        } else {
+                counter = ARMV7_IDX_TO_COUNTER(idx);
+                ret = pmnc & BIT(counter);
+        }
 
         return ret;
 }
 
-static inline int armv7_pmnc_select_counter(unsigned int idx)
+static inline int armv7_pmnc_select_counter(int idx)
 {
-        u32 val;
+        u32 counter;
 
-        if ((idx < ARMV7_COUNTER0) || (idx > ARMV7_COUNTER_LAST)) {
-                pr_err("CPU%u selecting wrong PMNC counter"
-                        " %d\n", smp_processor_id(), idx);
-                return -1;
+        if (!armv7_pmnc_counter_valid(idx)) {
+                pr_err("CPU%u selecting wrong PMNC counter %d\n",
+                        smp_processor_id(), idx);
+                return -EINVAL;
         }
 
-        val = (idx - ARMV7_EVENT_CNT_TO_CNTx) & ARMV7_SELECT_MASK;
-        asm volatile("mcr p15, 0, %0, c9, c12, 5" : : "r" (val));
+        counter = ARMV7_IDX_TO_COUNTER(idx);
+        asm volatile("mcr p15, 0, %0, c9, c12, 5" : : "r" (counter));
         isb();
 
         return idx;
@@ -812,124 +789,95 @@ static inline int armv7_pmnc_select_counter(unsigned int idx)
 
 static inline u32 armv7pmu_read_counter(int idx)
 {
-        unsigned long value = 0;
+        u32 value = 0;
 
-        if (idx == ARMV7_CYCLE_COUNTER)
-                asm volatile("mrc p15, 0, %0, c9, c13, 0" : "=r" (value));
-        else if ((idx >= ARMV7_COUNTER0) && (idx <= ARMV7_COUNTER_LAST)) {
-                if (armv7_pmnc_select_counter(idx) == idx)
-                        asm volatile("mrc p15, 0, %0, c9, c13, 2"
-                                     : "=r" (value));
-        } else
+        if (!armv7_pmnc_counter_valid(idx))
                 pr_err("CPU%u reading wrong counter %d\n",
                         smp_processor_id(), idx);
+        else if (idx == ARMV7_IDX_CYCLE_COUNTER)
+                asm volatile("mrc p15, 0, %0, c9, c13, 0" : "=r" (value));
+        else if (armv7_pmnc_select_counter(idx) == idx)
+                asm volatile("mrc p15, 0, %0, c9, c13, 2" : "=r" (value));
 
         return value;
 }
 
 static inline void armv7pmu_write_counter(int idx, u32 value)
 {
-        if (idx == ARMV7_CYCLE_COUNTER)
-                asm volatile("mcr p15, 0, %0, c9, c13, 0" : : "r" (value));
-        else if ((idx >= ARMV7_COUNTER0) && (idx <= ARMV7_COUNTER_LAST)) {
-                if (armv7_pmnc_select_counter(idx) == idx)
-                        asm volatile("mcr p15, 0, %0, c9, c13, 2"
-                                     : : "r" (value));
-        } else
+        if (!armv7_pmnc_counter_valid(idx))
                 pr_err("CPU%u writing wrong counter %d\n",
                         smp_processor_id(), idx);
+        else if (idx == ARMV7_IDX_CYCLE_COUNTER)
+                asm volatile("mcr p15, 0, %0, c9, c13, 0" : : "r" (value));
+        else if (armv7_pmnc_select_counter(idx) == idx)
+                asm volatile("mcr p15, 0, %0, c9, c13, 2" : : "r" (value));
 }
 
-static inline void armv7_pmnc_write_evtsel(unsigned int idx, u32 val)
+static inline void armv7_pmnc_write_evtsel(int idx, u32 val)
 {
         if (armv7_pmnc_select_counter(idx) == idx) {
-                val &= ARMV7_EVTSEL_MASK;
+                val &= ARMV7_EVTYPE_MASK;
                 asm volatile("mcr p15, 0, %0, c9, c13, 1" : : "r" (val));
         }
 }
 
-static inline u32 armv7_pmnc_enable_counter(unsigned int idx)
+static inline int armv7_pmnc_enable_counter(int idx)
 {
-        u32 val;
+        u32 counter;
 
-        if ((idx != ARMV7_CYCLE_COUNTER) &&
-            ((idx < ARMV7_COUNTER0) || (idx > ARMV7_COUNTER_LAST))) {
-                pr_err("CPU%u enabling wrong PMNC counter"
-                        " %d\n", smp_processor_id(), idx);
-                return -1;
+        if (!armv7_pmnc_counter_valid(idx)) {
+                pr_err("CPU%u enabling wrong PMNC counter %d\n",
+                        smp_processor_id(), idx);
+                return -EINVAL;
         }
 
-        if (idx == ARMV7_CYCLE_COUNTER)
-                val = ARMV7_CNTENS_C;
-        else
-                val = ARMV7_CNTENS_P(idx);
-
-        asm volatile("mcr p15, 0, %0, c9, c12, 1" : : "r" (val));
-
+        counter = ARMV7_IDX_TO_COUNTER(idx);
+        asm volatile("mcr p15, 0, %0, c9, c12, 1" : : "r" (BIT(counter)));
         return idx;
 }
 
-static inline u32 armv7_pmnc_disable_counter(unsigned int idx)
+static inline int armv7_pmnc_disable_counter(int idx)
 {
-        u32 val;
-
+        u32 counter;
 
-        if ((idx != ARMV7_CYCLE_COUNTER) &&
-            ((idx < ARMV7_COUNTER0) || (idx > ARMV7_COUNTER_LAST))) {
-                pr_err("CPU%u disabling wrong PMNC counter"
-                        " %d\n", smp_processor_id(), idx);
-                return -1;
+        if (!armv7_pmnc_counter_valid(idx)) {
+                pr_err("CPU%u disabling wrong PMNC counter %d\n",
+                        smp_processor_id(), idx);
+                return -EINVAL;
         }
 
-        if (idx == ARMV7_CYCLE_COUNTER)
-                val = ARMV7_CNTENC_C;
-        else
-                val = ARMV7_CNTENC_P(idx);
-
-        asm volatile("mcr p15, 0, %0, c9, c12, 2" : : "r" (val));
-
+        counter = ARMV7_IDX_TO_COUNTER(idx);
+        asm volatile("mcr p15, 0, %0, c9, c12, 2" : : "r" (BIT(counter)));
         return idx;
 }
 
-static inline u32 armv7_pmnc_enable_intens(unsigned int idx)
+static inline int armv7_pmnc_enable_intens(int idx)
 {
-        u32 val;
+        u32 counter;
 
-        if ((idx != ARMV7_CYCLE_COUNTER) &&
-            ((idx < ARMV7_COUNTER0) || (idx > ARMV7_COUNTER_LAST))) {
-                pr_err("CPU%u enabling wrong PMNC counter"
-                        " interrupt enable %d\n", smp_processor_id(), idx);
-                return -1;
+        if (!armv7_pmnc_counter_valid(idx)) {
+                pr_err("CPU%u enabling wrong PMNC counter IRQ enable %d\n",
+                        smp_processor_id(), idx);
+                return -EINVAL;
         }
 
-        if (idx == ARMV7_CYCLE_COUNTER)
-                val = ARMV7_INTENS_C;
-        else
-                val = ARMV7_INTENS_P(idx);
-
-        asm volatile("mcr p15, 0, %0, c9, c14, 1" : : "r" (val));
-
+        counter = ARMV7_IDX_TO_COUNTER(idx);
+        asm volatile("mcr p15, 0, %0, c9, c14, 1" : : "r" (BIT(counter)));
         return idx;
 }
 
-static inline u32 armv7_pmnc_disable_intens(unsigned int idx)
+static inline int armv7_pmnc_disable_intens(int idx)
 {
-        u32 val;
+        u32 counter;
 
-        if ((idx != ARMV7_CYCLE_COUNTER) &&
-            ((idx < ARMV7_COUNTER0) || (idx > ARMV7_COUNTER_LAST))) {
-                pr_err("CPU%u disabling wrong PMNC counter"
-                        " interrupt enable %d\n", smp_processor_id(), idx);
-                return -1;
+        if (!armv7_pmnc_counter_valid(idx)) {
+                pr_err("CPU%u disabling wrong PMNC counter IRQ enable %d\n",
+                        smp_processor_id(), idx);
+                return -EINVAL;
         }
 
-        if (idx == ARMV7_CYCLE_COUNTER)
-                val = ARMV7_INTENC_C;
-        else
-                val = ARMV7_INTENC_P(idx);
-
-        asm volatile("mcr p15, 0, %0, c9, c14, 2" : : "r" (val));
-
+        counter = ARMV7_IDX_TO_COUNTER(idx);
+        asm volatile("mcr p15, 0, %0, c9, c14, 2" : : "r" (BIT(counter)));
         return idx;
 }
 
@@ -973,14 +921,14 @@ static void armv7_pmnc_dump_regs(void)
         asm volatile("mrc p15, 0, %0, c9, c13, 0" : "=r" (val));
         printk(KERN_INFO "CCNT  =0x%08x\n", val);
 
-        for (cnt = ARMV7_COUNTER0; cnt < ARMV7_COUNTER_LAST; cnt++) {
+        for (cnt = ARMV7_IDX_COUNTER0; cnt <= ARMV7_IDX_COUNTER_LAST; cnt++) {
                 armv7_pmnc_select_counter(cnt);
                 asm volatile("mrc p15, 0, %0, c9, c13, 2" : "=r" (val));
                 printk(KERN_INFO "CNT[%d] count =0x%08x\n",
-                        cnt-ARMV7_EVENT_CNT_TO_CNTx, val);
+                        ARMV7_IDX_TO_COUNTER(cnt), val);
                 asm volatile("mrc p15, 0, %0, c9, c13, 1" : "=r" (val));
                 printk(KERN_INFO "CNT[%d] evtsel=0x%08x\n",
-                        cnt-ARMV7_EVENT_CNT_TO_CNTx, val);
+                        ARMV7_IDX_TO_COUNTER(cnt), val);
         }
 }
 #endif
@@ -988,12 +936,13 @@ static void armv7_pmnc_dump_regs(void)
 static void armv7pmu_enable_event(struct hw_perf_event *hwc, int idx)
 {
         unsigned long flags;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
         /*
          * Enable counter and interrupt, and set the counter to count
          * the event that we're interested in.
          */
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
 
         /*
          * Disable counter
@@ -1002,9 +951,10 @@ static void armv7pmu_enable_event(struct hw_perf_event *hwc, int idx)
 
         /*
          * Set event (if destined for PMNx counters)
-         * We don't need to set the event if it's a cycle count
+         * We only need to set the event for the cycle counter if we
+         * have the ability to perform event filtering.
          */
-        if (idx != ARMV7_CYCLE_COUNTER)
+        if (armv7pmu.set_event_filter || idx != ARMV7_IDX_CYCLE_COUNTER)
                 armv7_pmnc_write_evtsel(idx, hwc->config_base);
 
         /*
@@ -1017,17 +967,18 @@ static void armv7pmu_enable_event(struct hw_perf_event *hwc, int idx)
          */
         armv7_pmnc_enable_counter(idx);
 
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static void armv7pmu_disable_event(struct hw_perf_event *hwc, int idx)
 {
         unsigned long flags;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
         /*
          * Disable counter and interrupt
          */
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
 
         /*
          * Disable counter
@@ -1039,14 +990,14 @@ static void armv7pmu_disable_event(struct hw_perf_event *hwc, int idx)
          */
         armv7_pmnc_disable_intens(idx);
 
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
 {
-        unsigned long pmnc;
+        u32 pmnc;
         struct perf_sample_data data;
-        struct cpu_hw_events *cpuc;
+        struct pmu_hw_events *cpuc;
         struct pt_regs *regs;
         int idx;
 
@@ -1069,13 +1020,10 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
         perf_sample_data_init(&data, 0);
 
         cpuc = &__get_cpu_var(cpu_hw_events);
-        for (idx = 0; idx <= armpmu->num_events; ++idx) {
+        for (idx = 0; idx < cpu_pmu->num_events; ++idx) {
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
-                if (!test_bit(idx, cpuc->active_mask))
-                        continue;
-
                 /*
                  * We have a single interrupt for all counters. Check that
                  * each counter has overflowed before we process it.
@@ -1090,7 +1038,7 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
                         continue;
 
                 if (perf_event_overflow(event, &data, regs))
-                        armpmu->disable(hwc, idx);
+                        cpu_pmu->disable(hwc, idx);
         }
 
         /*
@@ -1108,61 +1056,114 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
 static void armv7pmu_start(void)
 {
         unsigned long flags;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         /* Enable all counters */
         armv7_pmnc_write(armv7_pmnc_read() | ARMV7_PMNC_E);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static void armv7pmu_stop(void)
 {
         unsigned long flags;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         /* Disable all counters */
         armv7_pmnc_write(armv7_pmnc_read() & ~ARMV7_PMNC_E);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
-static int armv7pmu_get_event_idx(struct cpu_hw_events *cpuc,
+static int armv7pmu_get_event_idx(struct pmu_hw_events *cpuc,
                                   struct hw_perf_event *event)
 {
         int idx;
+        unsigned long evtype = event->config_base & ARMV7_EVTYPE_EVENT;
 
         /* Always place a cycle counter into the cycle counter. */
-        if (event->config_base == ARMV7_PERFCTR_CPU_CYCLES) {
-                if (test_and_set_bit(ARMV7_CYCLE_COUNTER, cpuc->used_mask))
+        if (evtype == ARMV7_PERFCTR_CPU_CYCLES) {
+                if (test_and_set_bit(ARMV7_IDX_CYCLE_COUNTER, cpuc->used_mask))
                         return -EAGAIN;
 
-                return ARMV7_CYCLE_COUNTER;
-        } else {
-                /*
-                 * For anything other than a cycle counter, try and use
-                 * the events counters
-                 */
-                for (idx = ARMV7_COUNTER0; idx <= armpmu->num_events; ++idx) {
-                        if (!test_and_set_bit(idx, cpuc->used_mask))
-                                return idx;
-                }
+                return ARMV7_IDX_CYCLE_COUNTER;
+        }
 
-                /* The counters are all in use. */
-                return -EAGAIN;
+        /*
+         * For anything other than a cycle counter, try and use
+         * the events counters
+         */
+        for (idx = ARMV7_IDX_COUNTER0; idx < cpu_pmu->num_events; ++idx) {
+                if (!test_and_set_bit(idx, cpuc->used_mask))
+                        return idx;
         }
+
+        /* The counters are all in use. */
+        return -EAGAIN;
+}
+
+/*
+ * Add an event filter to a given event. This will only work for PMUv2 PMUs.
+ */
+static int armv7pmu_set_event_filter(struct hw_perf_event *event,
+                                     struct perf_event_attr *attr)
+{
+        unsigned long config_base = 0;
+
+        if (attr->exclude_idle)
+                return -EPERM;
+        if (attr->exclude_user)
+                config_base |= ARMV7_EXCLUDE_USER;
+        if (attr->exclude_kernel)
+                config_base |= ARMV7_EXCLUDE_PL1;
+        if (!attr->exclude_hv)
+                config_base |= ARMV7_INCLUDE_HYP;
+
+        /*
+         * Install the filter into config_base as this is used to
+         * construct the event type.
+         */
+        event->config_base = config_base;
+
+        return 0;
 }
 
 static void armv7pmu_reset(void *info)
 {
-        u32 idx, nb_cnt = armpmu->num_events;
+        u32 idx, nb_cnt = cpu_pmu->num_events;
 
         /* The counter and interrupt enable registers are unknown at reset. */
-        for (idx = 1; idx < nb_cnt; ++idx)
+        for (idx = ARMV7_IDX_CYCLE_COUNTER; idx < nb_cnt; ++idx)
                 armv7pmu_disable_event(NULL, idx);
 
         /* Initialize & Reset PMNC: C and P bits */
         armv7_pmnc_write(ARMV7_PMNC_P | ARMV7_PMNC_C);
 }
 
+static int armv7_a8_map_event(struct perf_event *event)
+{
+        return map_cpu_event(event, &armv7_a8_perf_map,
+                                &armv7_a8_perf_cache_map, 0xFF);
+}
+
+static int armv7_a9_map_event(struct perf_event *event)
+{
+        return map_cpu_event(event, &armv7_a9_perf_map,
+                                &armv7_a9_perf_cache_map, 0xFF);
+}
+
+static int armv7_a5_map_event(struct perf_event *event)
+{
+        return map_cpu_event(event, &armv7_a5_perf_map,
+                                &armv7_a5_perf_cache_map, 0xFF);
+}
+
+static int armv7_a15_map_event(struct perf_event *event)
+{
+        return map_cpu_event(event, &armv7_a15_perf_map,
+                                &armv7_a15_perf_cache_map, 0xFF);
+}
+
 static struct arm_pmu armv7pmu = {
         .handle_irq             = armv7pmu_handle_irq,
         .enable                 = armv7pmu_enable_event,
@@ -1173,7 +1174,6 @@ static struct arm_pmu armv7pmu = {
         .start                  = armv7pmu_start,
         .stop                   = armv7pmu_stop,
         .reset                  = armv7pmu_reset,
-        .raw_event_mask         = 0xFF,
         .max_period             = (1LLU << 32) - 1,
 };
 
@@ -1188,62 +1188,59 @@ static u32 __init armv7_read_num_pmnc_events(void)
         return nb_cnt + 1;
 }
 
-static const struct arm_pmu *__init armv7_a8_pmu_init(void)
+static struct arm_pmu *__init armv7_a8_pmu_init(void)
 {
         armv7pmu.id             = ARM_PERF_PMU_ID_CA8;
         armv7pmu.name           = "ARMv7 Cortex-A8";
-        armv7pmu.cache_map      = &armv7_a8_perf_cache_map;
-        armv7pmu.event_map      = &armv7_a8_perf_map;
+        armv7pmu.map_event      = armv7_a8_map_event;
         armv7pmu.num_events     = armv7_read_num_pmnc_events();
         return &armv7pmu;
 }
 
-static const struct arm_pmu *__init armv7_a9_pmu_init(void)
+static struct arm_pmu *__init armv7_a9_pmu_init(void)
 {
         armv7pmu.id             = ARM_PERF_PMU_ID_CA9;
         armv7pmu.name           = "ARMv7 Cortex-A9";
-        armv7pmu.cache_map      = &armv7_a9_perf_cache_map;
-        armv7pmu.event_map      = &armv7_a9_perf_map;
+        armv7pmu.map_event      = armv7_a9_map_event;
         armv7pmu.num_events     = armv7_read_num_pmnc_events();
         return &armv7pmu;
 }
 
-static const struct arm_pmu *__init armv7_a5_pmu_init(void)
+static struct arm_pmu *__init armv7_a5_pmu_init(void)
 {
         armv7pmu.id             = ARM_PERF_PMU_ID_CA5;
         armv7pmu.name           = "ARMv7 Cortex-A5";
-        armv7pmu.cache_map      = &armv7_a5_perf_cache_map;
-        armv7pmu.event_map      = &armv7_a5_perf_map;
+        armv7pmu.map_event      = armv7_a5_map_event;
         armv7pmu.num_events     = armv7_read_num_pmnc_events();
         return &armv7pmu;
 }
 
-static const struct arm_pmu *__init armv7_a15_pmu_init(void)
+static struct arm_pmu *__init armv7_a15_pmu_init(void)
 {
         armv7pmu.id             = ARM_PERF_PMU_ID_CA15;
         armv7pmu.name           = "ARMv7 Cortex-A15";
-        armv7pmu.cache_map      = &armv7_a15_perf_cache_map;
-        armv7pmu.event_map      = &armv7_a15_perf_map;
+        armv7pmu.map_event      = armv7_a15_map_event;
         armv7pmu.num_events     = armv7_read_num_pmnc_events();
+        armv7pmu.set_event_filter = armv7pmu_set_event_filter;
         return &armv7pmu;
 }
 #else
-static const struct arm_pmu *__init armv7_a8_pmu_init(void)
+static struct arm_pmu *__init armv7_a8_pmu_init(void)
 {
         return NULL;
 }
 
-static const struct arm_pmu *__init armv7_a9_pmu_init(void)
+static struct arm_pmu *__init armv7_a9_pmu_init(void)
 {
         return NULL;
 }
 
-static const struct arm_pmu *__init armv7_a5_pmu_init(void)
+static struct arm_pmu *__init armv7_a5_pmu_init(void)
 {
         return NULL;
 }
 
-static const struct arm_pmu *__init armv7_a15_pmu_init(void)
+static struct arm_pmu *__init armv7_a15_pmu_init(void)
 {
         return NULL;
 }
diff --git a/arch/arm/kernel/perf_event_xscale.c b/arch/arm/kernel/perf_event_xscale.c
index 3c4397491d08..e0cca10a8411 100644
--- a/arch/arm/kernel/perf_event_xscale.c
+++ b/arch/arm/kernel/perf_event_xscale.c
@@ -40,7 +40,7 @@ enum xscale_perf_types {
 };
 
 enum xscale_counters {
-        XSCALE_CYCLE_COUNTER    = 1,
+        XSCALE_CYCLE_COUNTER    = 0,
         XSCALE_COUNTER0,
         XSCALE_COUNTER1,
         XSCALE_COUNTER2,
@@ -222,7 +222,7 @@ xscale1pmu_handle_irq(int irq_num, void *dev)
 {
         unsigned long pmnc;
         struct perf_sample_data data;
-        struct cpu_hw_events *cpuc;
+        struct pmu_hw_events *cpuc;
         struct pt_regs *regs;
         int idx;
 
@@ -249,13 +249,10 @@ xscale1pmu_handle_irq(int irq_num, void *dev)
         perf_sample_data_init(&data, 0);
 
         cpuc = &__get_cpu_var(cpu_hw_events);
-        for (idx = 0; idx <= armpmu->num_events; ++idx) {
+        for (idx = 0; idx < cpu_pmu->num_events; ++idx) {
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
-                if (!test_bit(idx, cpuc->active_mask))
-                        continue;
-
                 if (!xscale1_pmnc_counter_has_overflowed(pmnc, idx))
                         continue;
 
@@ -266,7 +263,7 @@ xscale1pmu_handle_irq(int irq_num, void *dev)
                         continue;
 
                 if (perf_event_overflow(event, &data, regs))
-                        armpmu->disable(hwc, idx);
+                        cpu_pmu->disable(hwc, idx);
         }
 
         irq_work_run();
@@ -284,6 +281,7 @@ static void
 xscale1pmu_enable_event(struct hw_perf_event *hwc, int idx)
 {
         unsigned long val, mask, evt, flags;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
         switch (idx) {
         case XSCALE_CYCLE_COUNTER:
@@ -305,18 +303,19 @@ xscale1pmu_enable_event(struct hw_perf_event *hwc, int idx)
                 return;
         }
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         val = xscale1pmu_read_pmnc();
         val &= ~mask;
         val |= evt;
         xscale1pmu_write_pmnc(val);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static void
 xscale1pmu_disable_event(struct hw_perf_event *hwc, int idx)
 {
         unsigned long val, mask, evt, flags;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
         switch (idx) {
         case XSCALE_CYCLE_COUNTER:
@@ -336,16 +335,16 @@ xscale1pmu_disable_event(struct hw_perf_event *hwc, int idx)
                 return;
         }
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         val = xscale1pmu_read_pmnc();
         val &= ~mask;
         val |= evt;
         xscale1pmu_write_pmnc(val);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static int
-xscale1pmu_get_event_idx(struct cpu_hw_events *cpuc,
+xscale1pmu_get_event_idx(struct pmu_hw_events *cpuc,
                         struct hw_perf_event *event)
 {
         if (XSCALE_PERFCTR_CCNT == event->config_base) {
@@ -368,24 +367,26 @@ static void
 xscale1pmu_start(void)
 {
         unsigned long flags, val;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         val = xscale1pmu_read_pmnc();
         val |= XSCALE_PMU_ENABLE;
         xscale1pmu_write_pmnc(val);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static void
 xscale1pmu_stop(void)
 {
         unsigned long flags, val;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         val = xscale1pmu_read_pmnc();
         val &= ~XSCALE_PMU_ENABLE;
         xscale1pmu_write_pmnc(val);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static inline u32
@@ -424,7 +425,13 @@ xscale1pmu_write_counter(int counter, u32 val)
         }
 }
 
-static const struct arm_pmu xscale1pmu = {
+static int xscale_map_event(struct perf_event *event)
+{
+        return map_cpu_event(event, &xscale_perf_map,
+                                &xscale_perf_cache_map, 0xFF);
+}
+
+static struct arm_pmu xscale1pmu = {
         .id             = ARM_PERF_PMU_ID_XSCALE1,
         .name           = "xscale1",
         .handle_irq     = xscale1pmu_handle_irq,
@@ -435,14 +442,12 @@ static const struct arm_pmu xscale1pmu = {
         .get_event_idx  = xscale1pmu_get_event_idx,
         .start          = xscale1pmu_start,
         .stop           = xscale1pmu_stop,
-        .cache_map      = &xscale_perf_cache_map,
-        .event_map      = &xscale_perf_map,
-        .raw_event_mask = 0xFF,
+        .map_event      = xscale_map_event,
         .num_events     = 3,
         .max_period     = (1LLU << 32) - 1,
 };
 
-static const struct arm_pmu *__init xscale1pmu_init(void)
+static struct arm_pmu *__init xscale1pmu_init(void)
 {
         return &xscale1pmu;
 }
@@ -560,7 +565,7 @@ xscale2pmu_handle_irq(int irq_num, void *dev)
 {
         unsigned long pmnc, of_flags;
         struct perf_sample_data data;
-        struct cpu_hw_events *cpuc;
+        struct pmu_hw_events *cpuc;
         struct pt_regs *regs;
         int idx;
 
@@ -581,13 +586,10 @@ xscale2pmu_handle_irq(int irq_num, void *dev)
         perf_sample_data_init(&data, 0);
 
         cpuc = &__get_cpu_var(cpu_hw_events);
-        for (idx = 0; idx <= armpmu->num_events; ++idx) {
+        for (idx = 0; idx < cpu_pmu->num_events; ++idx) {
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
-                if (!test_bit(idx, cpuc->active_mask))
-                        continue;
-
                 if (!xscale2_pmnc_counter_has_overflowed(pmnc, idx))
                         continue;
 
@@ -598,7 +600,7 @@ xscale2pmu_handle_irq(int irq_num, void *dev)
                         continue;
 
                 if (perf_event_overflow(event, &data, regs))
-                        armpmu->disable(hwc, idx);
+                        cpu_pmu->disable(hwc, idx);
         }
 
         irq_work_run();
@@ -616,6 +618,7 @@ static void
 xscale2pmu_enable_event(struct hw_perf_event *hwc, int idx)
 {
         unsigned long flags, ien, evtsel;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
         ien = xscale2pmu_read_int_enable();
         evtsel = xscale2pmu_read_event_select();
@@ -649,16 +652,17 @@ xscale2pmu_enable_event(struct hw_perf_event *hwc, int idx)
                 return;
         }
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         xscale2pmu_write_event_select(evtsel);
         xscale2pmu_write_int_enable(ien);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static void
 xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
 {
         unsigned long flags, ien, evtsel;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
         ien = xscale2pmu_read_int_enable();
         evtsel = xscale2pmu_read_event_select();
@@ -692,14 +696,14 @@ xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
                 return;
         }
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         xscale2pmu_write_event_select(evtsel);
         xscale2pmu_write_int_enable(ien);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static int
-xscale2pmu_get_event_idx(struct cpu_hw_events *cpuc,
+xscale2pmu_get_event_idx(struct pmu_hw_events *cpuc,
                         struct hw_perf_event *event)
 {
         int idx = xscale1pmu_get_event_idx(cpuc, event);
@@ -718,24 +722,26 @@ static void
 xscale2pmu_start(void)
 {
         unsigned long flags, val;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         val = xscale2pmu_read_pmnc() & ~XSCALE_PMU_CNT64;
         val |= XSCALE_PMU_ENABLE;
         xscale2pmu_write_pmnc(val);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static void
 xscale2pmu_stop(void)
 {
         unsigned long flags, val;
+        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
-        raw_spin_lock_irqsave(&pmu_lock, flags);
+        raw_spin_lock_irqsave(&events->pmu_lock, flags);
         val = xscale2pmu_read_pmnc();
         val &= ~XSCALE_PMU_ENABLE;
         xscale2pmu_write_pmnc(val);
-        raw_spin_unlock_irqrestore(&pmu_lock, flags);
+        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
 static inline u32
@@ -786,7 +792,7 @@ xscale2pmu_write_counter(int counter, u32 val)
         }
 }
 
-static const struct arm_pmu xscale2pmu = {
+static struct arm_pmu xscale2pmu = {
         .id             = ARM_PERF_PMU_ID_XSCALE2,
         .name           = "xscale2",
         .handle_irq     = xscale2pmu_handle_irq,
@@ -797,24 +803,22 @@ static const struct arm_pmu xscale2pmu = {
         .get_event_idx  = xscale2pmu_get_event_idx,
         .start          = xscale2pmu_start,
         .stop           = xscale2pmu_stop,
-        .cache_map      = &xscale_perf_cache_map,
-        .event_map      = &xscale_perf_map,
-        .raw_event_mask = 0xFF,
+        .map_event      = xscale_map_event,
         .num_events     = 5,
         .max_period     = (1LLU << 32) - 1,
 };
 
-static const struct arm_pmu *__init xscale2pmu_init(void)
+static struct arm_pmu *__init xscale2pmu_init(void)
 {
         return &xscale2pmu;
 }
 #else
-static const struct arm_pmu *__init xscale1pmu_init(void)
+static struct arm_pmu *__init xscale1pmu_init(void)
 {
         return NULL;
 }
 
-static const struct arm_pmu *__init xscale2pmu_init(void)
+static struct arm_pmu *__init xscale2pmu_init(void)
 {
         return NULL;
 }
diff --git a/arch/arm/kernel/pmu.c b/arch/arm/kernel/pmu.c
index c53474fe84df..2c3407ee8576 100644
--- a/arch/arm/kernel/pmu.c
+++ b/arch/arm/kernel/pmu.c
@@ -10,192 +10,26 @@
  *
  */
 
-#define pr_fmt(fmt) "PMU: " fmt
-
-#include <linux/cpumask.h>
 #include <linux/err.h>
-#include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
 
 #include <asm/pmu.h>
 
-static volatile long pmu_lock;
-
-static struct platform_device *pmu_devices[ARM_NUM_PMU_DEVICES];
-
-static int __devinit pmu_register(struct platform_device *pdev,
-                                        enum arm_pmu_type type)
-{
-        if (type < 0 || type >= ARM_NUM_PMU_DEVICES) {
-                pr_warning("received registration request for unknown "
-                                "PMU device type %d\n", type);
-                return -EINVAL;
-        }
-
-        if (pmu_devices[type]) {
-                pr_warning("rejecting duplicate registration of PMU device "
-                        "type %d.", type);
-                return -ENOSPC;
-        }
-
-        pr_info("registered new PMU device of type %d\n", type);
-        pmu_devices[type] = pdev;
-        return 0;
-}
-
-#define OF_MATCH_PMU(_name, _type) {    \
-        .compatible = _name,            \
-        .data = (void *)_type,          \
-}
-
-#define OF_MATCH_CPU(name)      OF_MATCH_PMU(name, ARM_PMU_DEVICE_CPU)
-
-static struct of_device_id armpmu_of_device_ids[] = {
-        OF_MATCH_CPU("arm,cortex-a9-pmu"),
-        OF_MATCH_CPU("arm,cortex-a8-pmu"),
-        OF_MATCH_CPU("arm,arm1136-pmu"),
-        OF_MATCH_CPU("arm,arm1176-pmu"),
-        {},
-};
-
-#define PLAT_MATCH_PMU(_name, _type) {  \
-        .name           = _name,        \
-        .driver_data    = _type,        \
-}
-
-#define PLAT_MATCH_CPU(_name)   PLAT_MATCH_PMU(_name, ARM_PMU_DEVICE_CPU)
-
-static struct platform_device_id armpmu_plat_device_ids[] = {
-        PLAT_MATCH_CPU("arm-pmu"),
-        {},
-};
-
-enum arm_pmu_type armpmu_device_type(struct platform_device *pdev)
-{
-        const struct of_device_id       *of_id;
-        const struct platform_device_id *pdev_id;
-
-        /* provided by of_device_id table */
-        if (pdev->dev.of_node) {
-                of_id = of_match_device(armpmu_of_device_ids, &pdev->dev);
-                BUG_ON(!of_id);
-                return (enum arm_pmu_type)of_id->data;
-        }
-
-        /* Provided by platform_device_id table */
-        pdev_id = platform_get_device_id(pdev);
-        BUG_ON(!pdev_id);
-        return pdev_id->driver_data;
-}
-
-static int __devinit armpmu_device_probe(struct platform_device *pdev)
-{
-        return pmu_register(pdev, armpmu_device_type(pdev));
-}
-
-static struct platform_driver armpmu_driver = {
-        .driver         = {
-                .name   = "arm-pmu",
-                .of_match_table = armpmu_of_device_ids,
-        },
-        .probe          = armpmu_device_probe,
-        .id_table       = armpmu_plat_device_ids,
-};
-
-static int __init register_pmu_driver(void)
-{
-        return platform_driver_register(&armpmu_driver);
-}
-device_initcall(register_pmu_driver);
+/*
+ * PMU locking to ensure mutual exclusion between different subsystems.
+ */
+static unsigned long pmu_lock[BITS_TO_LONGS(ARM_NUM_PMU_DEVICES)];
 
-struct platform_device *
+int
 reserve_pmu(enum arm_pmu_type type)
 {
-        struct platform_device *pdev;
-
-        if (test_and_set_bit_lock(type, &pmu_lock)) {
-                pdev = ERR_PTR(-EBUSY);
-        } else if (pmu_devices[type] == NULL) {
-                clear_bit_unlock(type, &pmu_lock);
-                pdev = ERR_PTR(-ENODEV);
-        } else {
-                pdev = pmu_devices[type];
-        }
-
-        return pdev;
+        return test_and_set_bit_lock(type, pmu_lock) ? -EBUSY : 0;
 }
 EXPORT_SYMBOL_GPL(reserve_pmu);
 
-int
+void
 release_pmu(enum arm_pmu_type type)
 {
-        if (WARN_ON(!pmu_devices[type]))
-                return -EINVAL;
-        clear_bit_unlock(type, &pmu_lock);
-        return 0;
-}
-EXPORT_SYMBOL_GPL(release_pmu);
-
-static int
-set_irq_affinity(int irq,
-                 unsigned int cpu)
-{
-#ifdef CONFIG_SMP
-        int err = irq_set_affinity(irq, cpumask_of(cpu));
-        if (err)
-                pr_warning("unable to set irq affinity (irq=%d, cpu=%u)\n",
-                           irq, cpu);
-        return err;
-#else
-        return -EINVAL;
-#endif
-}
-
-static int
-init_cpu_pmu(void)
-{
-        int i, irqs, err = 0;
-        struct platform_device *pdev = pmu_devices[ARM_PMU_DEVICE_CPU];
-
-        if (!pdev)
-                return -ENODEV;
-
-        irqs = pdev->num_resources;
-
-        /*
-         * If we have a single PMU interrupt that we can't shift, assume that
-         * we're running on a uniprocessor machine and continue.
-         */
-        if (irqs == 1 && !irq_can_set_affinity(platform_get_irq(pdev, 0)))
-                return 0;
-
-        for (i = 0; i < irqs; ++i) {
-                err = set_irq_affinity(platform_get_irq(pdev, i), i);
-                if (err)
-                        break;
-        }
-
-        return err;
-}
-
-int
-init_pmu(enum arm_pmu_type type)
-{
-        int err = 0;
-
-        switch (type) {
-        case ARM_PMU_DEVICE_CPU:
-                err = init_cpu_pmu();
-                break;
-        default:
-                pr_warning("attempt to initialise PMU of unknown "
-                           "type %d\n", type);
-                err = -EINVAL;
-        }
-
-        return err;
+        clear_bit_unlock(type, pmu_lock);
 }
-EXPORT_SYMBOL_GPL(init_pmu);
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index e514c76043b4..6136144f8f8d 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -820,25 +820,8 @@ static struct machine_desc * __init setup_machine_tags(unsigned int nr)
 
         if (__atags_pointer)
                 tags = phys_to_virt(__atags_pointer);
-        else if (mdesc->boot_params) {
-#ifdef CONFIG_MMU
-                /*
-                 * We still are executing with a minimal MMU mapping created
-                 * with the presumption that the machine default for this
-                 * is located in the first MB of RAM.  Anything else will
-                 * fault and silently hang the kernel at this point.
-                 */
-                if (mdesc->boot_params < PHYS_OFFSET ||
-                    mdesc->boot_params >= PHYS_OFFSET + SZ_1M) {
-                        printk(KERN_WARNING
-                               "Default boot params at physical 0x%08lx out of reach\n",
-                               mdesc->boot_params);
-                } else
-#endif
-                {
-                        tags = phys_to_virt(mdesc->boot_params);
-                }
-        }
+        else if (mdesc->atag_offset)
+                tags = (void *)(PAGE_OFFSET + mdesc->atag_offset);
 
 #if defined(CONFIG_DEPRECATED_PARAM_STRUCT)
         /*
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index e04c5fb6f1ee..1532b508c814 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -12,6 +12,7 @@
 
 #include <linux/module.h>
 #include <linux/pm.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/irq.h>
 #include <asm/mach/arch.h>
@@ -319,6 +320,7 @@ static void at91sam9g45_poweroff(void)
 static void __init at91sam9g45_map_io(void)
 {
         at91_init_sram(0, AT91SAM9G45_SRAM_BASE, AT91SAM9G45_SRAM_SIZE);
+        init_consistent_dma_size(SZ_4M);
 }
 
 static void __init at91sam9g45_initialize(void)
diff --git a/arch/arm/mach-at91/include/mach/at91sam9g45.h b/arch/arm/mach-at91/include/mach/at91sam9g45.h
index 2c611b9a0138..406bb6496805 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9g45.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9g45.h
@@ -128,8 +128,6 @@
 #define AT91SAM9G45_EHCI_BASE   0x00800000      /* USB Host controller (EHCI) */
 #define AT91SAM9G45_VDEC_BASE   0x00900000      /* Video Decoder Controller */
 
-#define CONSISTENT_DMA_SIZE     SZ_4M
-
 /*
  * DMA peripheral identifiers
  * for hardware handshaking interface
diff --git a/arch/arm/mach-bcmring/include/mach/memory.h b/arch/arm/mach-bcmring/include/mach/memory.h
index 15162e4c75f9..8848a5bb3445 100644
--- a/arch/arm/mach-bcmring/include/mach/memory.h
+++ b/arch/arm/mach-bcmring/include/mach/memory.h
@@ -25,9 +25,4 @@
 
 #define PLAT_PHYS_OFFSET CFG_GLOBAL_RAM_BASE
 
-/*
- * Maximum DMA memory allowed is 14M
- */
-#define CONSISTENT_DMA_SIZE (SZ_16M - SZ_2M)
-
 #endif
diff --git a/arch/arm/mach-bcmring/mm.c b/arch/arm/mach-bcmring/mm.c
index 0f1c37e4523a..8616876abb9f 100644
--- a/arch/arm/mach-bcmring/mm.c
+++ b/arch/arm/mach-bcmring/mm.c
@@ -13,6 +13,7 @@
 *****************************************************************************/
 
 #include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
 #include <asm/mach/map.h>
 
 #include <mach/hardware.h>
@@ -53,4 +54,6 @@ void __init bcmring_map_io(void)
 {
 
         iotable_init(bcmring_io_desc, ARRAY_SIZE(bcmring_io_desc));
+        /* Maximum DMA memory allowed is 14M */
+        init_consistent_dma_size(14 << 20);
 }
diff --git a/arch/arm/mach-clps711x/autcpu12.c b/arch/arm/mach-clps711x/autcpu12.c
index 4a74b2c959bd..0276091b7f86 100644
--- a/arch/arm/mach-clps711x/autcpu12.c
+++ b/arch/arm/mach-clps711x/autcpu12.c
@@ -64,7 +64,7 @@ void __init autcpu12_map_io(void)
 
 MACHINE_START(AUTCPU12, "autronix autcpu12")
         /* Maintainer: Thomas Gleixner */
-        .boot_params    = 0xc0020000,
+        .atag_offset    = 0x20000,
         .map_io         = autcpu12_map_io,
         .init_irq       = clps711x_init_irq,
         .timer          = &clps711x_timer,
diff --git a/arch/arm/mach-clps711x/cdb89712.c b/arch/arm/mach-clps711x/cdb89712.c
index 5a1689d48793..25b3bfd0e85a 100644
--- a/arch/arm/mach-clps711x/cdb89712.c
+++ b/arch/arm/mach-clps711x/cdb89712.c
@@ -55,7 +55,7 @@ static void __init cdb89712_map_io(void)
 
 MACHINE_START(CDB89712, "Cirrus-CDB89712")
         /* Maintainer: Ray Lehtiniemi */
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .map_io         = cdb89712_map_io,
         .init_irq       = clps711x_init_irq,
         .timer          = &clps711x_timer,
diff --git a/arch/arm/mach-clps711x/ceiva.c b/arch/arm/mach-clps711x/ceiva.c
index 16481cf3e931..1df9ec67aa92 100644
--- a/arch/arm/mach-clps711x/ceiva.c
+++ b/arch/arm/mach-clps711x/ceiva.c
@@ -56,7 +56,7 @@ static void __init ceiva_map_io(void)
 
 MACHINE_START(CEIVA, "CEIVA/Polaroid Photo MAX Digital Picture Frame")
         /* Maintainer: Rob Scott */
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .map_io         = ceiva_map_io,
         .init_irq       = clps711x_init_irq,
         .timer          = &clps711x_timer,
diff --git a/arch/arm/mach-clps711x/clep7312.c b/arch/arm/mach-clps711x/clep7312.c
index 67b5abb4a60a..06c8abd9371f 100644
--- a/arch/arm/mach-clps711x/clep7312.c
+++ b/arch/arm/mach-clps711x/clep7312.c
@@ -37,7 +37,7 @@ fixup_clep7312(struct machine_desc *desc, struct tag *tags,
 
 MACHINE_START(CLEP7212, "Cirrus Logic 7212/7312")
         /* Maintainer: Nobody */
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x0100,
         .fixup          = fixup_clep7312,
         .map_io         = clps711x_map_io,
         .init_irq       = clps711x_init_irq,
diff --git a/arch/arm/mach-clps711x/edb7211-arch.c b/arch/arm/mach-clps711x/edb7211-arch.c
index 98ca5b2e940d..abf522d1ec9b 100644
--- a/arch/arm/mach-clps711x/edb7211-arch.c
+++ b/arch/arm/mach-clps711x/edb7211-arch.c
@@ -57,7 +57,7 @@ fixup_edb7211(struct machine_desc *desc, struct tag *tags,
 
 MACHINE_START(EDB7211, "CL-EDB7211 (EP7211 eval board)")
         /* Maintainer: Jon McClintock */
-        .boot_params    = 0xc0020100,   /* 0xc0000000 - 0xc001ffff can be video RAM */
+        .atag_offset    = 0x20100,      /* 0xc0000000 - 0xc001ffff can be video RAM */
         .fixup          = fixup_edb7211,
         .map_io         = edb7211_map_io,
         .reserve        = edb7211_reserve,
diff --git a/arch/arm/mach-clps711x/fortunet.c b/arch/arm/mach-clps711x/fortunet.c
index b1cb479e71e9..b6f7d86bb1c9 100644
--- a/arch/arm/mach-clps711x/fortunet.c
+++ b/arch/arm/mach-clps711x/fortunet.c
@@ -75,7 +75,6 @@ fortunet_fixup(struct machine_desc *desc, struct tag *tags,
 
 MACHINE_START(FORTUNET, "ARM-FortuNet")
         /* Maintainer: FortuNet Inc. */
-        .boot_params    = 0x00000000,
         .fixup          = fortunet_fixup,
         .map_io         = clps711x_map_io,
         .init_irq       = clps711x_init_irq,
diff --git a/arch/arm/mach-clps711x/p720t.c b/arch/arm/mach-clps711x/p720t.c
index cefbce0480b9..e7f75aeb1e5b 100644
--- a/arch/arm/mach-clps711x/p720t.c
+++ b/arch/arm/mach-clps711x/p720t.c
@@ -89,7 +89,7 @@ static void __init p720t_map_io(void)
 
 MACHINE_START(P720T, "ARM-Prospector720T")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .fixup          = fixup_p720t,
         .map_io         = p720t_map_io,
         .init_irq       = clps711x_init_irq,
diff --git a/arch/arm/mach-cns3xxx/cns3420vb.c b/arch/arm/mach-cns3xxx/cns3420vb.c
index 3e7d1496cb47..55f7b4b08ab9 100644
--- a/arch/arm/mach-cns3xxx/cns3420vb.c
+++ b/arch/arm/mach-cns3xxx/cns3420vb.c
@@ -197,7 +197,7 @@ static void __init cns3420_map_io(void)
 }
 
 MACHINE_START(CNS3420VB, "Cavium Networks CNS3420 Validation Board")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = cns3420_map_io,
         .init_irq       = cns3xxx_init_irq,
         .timer          = &cns3xxx_timer,
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index 84fd78684868..26d94c0b555c 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -676,7 +676,7 @@ static void __init da830_evm_map_io(void)
 }
 
 MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137/AM17x EVM")
-        .boot_params    = (DA8XX_DDR_BASE + 0x100),
+        .atag_offset    = 0x100,
         .map_io         = da830_evm_map_io,
         .init_irq       = cp_intc_init,
         .timer          = &davinci_timer,
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 008d51407cd7..6e41cb5baeb4 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -1291,7 +1291,7 @@ static void __init da850_evm_map_io(void)
 }
 
 MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138/AM18x EVM")
-        .boot_params    = (DA8XX_DDR_BASE + 0x100),
+        .atag_offset    = 0x100,
         .map_io         = da850_evm_map_io,
         .init_irq       = cp_intc_init,
         .timer          = &davinci_timer,
diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index 241a6bd67408..65566280b7c9 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -351,7 +351,7 @@ static __init void dm355_evm_init(void)
 }
 
 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
-        .boot_params  = (0x80000100),
+        .atag_offset  = 0x100,
         .map_io       = dm355_evm_map_io,
         .init_irq     = davinci_irq_init,
         .timer        = &davinci_timer,
diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c
index bee284ca7fd6..b307470b071d 100644
--- a/arch/arm/mach-davinci/board-dm355-leopard.c
+++ b/arch/arm/mach-davinci/board-dm355-leopard.c
@@ -270,7 +270,7 @@ static __init void dm355_leopard_init(void)
 }
 
 MACHINE_START(DM355_LEOPARD, "DaVinci DM355 leopard")
-        .boot_params  = (0x80000100),
+        .atag_offset  = 0x100,
         .map_io       = dm355_leopard_map_io,
         .init_irq     = davinci_irq_init,
         .timer        = &davinci_timer,
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 9818f214d4f0..04c43abcca66 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -612,7 +612,7 @@ static __init void dm365_evm_init(void)
 }
 
 MACHINE_START(DAVINCI_DM365_EVM, "DaVinci DM365 EVM")
-        .boot_params    = (0x80000100),
+        .atag_offset    = 0x100,
         .map_io         = dm365_evm_map_io,
         .init_irq       = davinci_irq_init,
         .timer          = &davinci_timer,
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 95607a191e03..a005e7691ddd 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -712,7 +712,7 @@ static __init void davinci_evm_init(void)
 
 MACHINE_START(DAVINCI_EVM, "DaVinci DM644x EVM")
         /* Maintainer: MontaVista Software <source@mvista.com> */
-        .boot_params  = (DAVINCI_DDR_BASE + 0x100),
+        .atag_offset  = 0x100,
         .map_io       = davinci_evm_map_io,
         .init_irq     = davinci_irq_init,
         .timer        = &davinci_timer,
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index 993a3146fd35..337c45e3e44d 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -792,7 +792,7 @@ static __init void evm_init(void)
 }
 
 MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")
-        .boot_params  = (0x80000100),
+        .atag_offset  = 0x100,
         .map_io       = davinci_map_io,
         .init_irq     = davinci_irq_init,
         .timer        = &davinci_timer,
@@ -801,7 +801,7 @@ MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")
 MACHINE_END
 
 MACHINE_START(DAVINCI_DM6467TEVM, "DaVinci DM6467T EVM")
-        .boot_params  = (0x80000100),
+        .atag_offset  = 0x100,
         .map_io       = davinci_map_io,
         .init_irq     = davinci_irq_init,
         .timer        = &davinci_timer,
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
index c278226627ad..6efc84cceca0 100644
--- a/arch/arm/mach-davinci/board-mityomapl138.c
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -566,7 +566,7 @@ static void __init mityomapl138_map_io(void)
 }
 
 MACHINE_START(MITYOMAPL138, "MityDSP-L138/MityARM-1808")
-        .boot_params    = (DA8XX_DDR_BASE + 0x100),
+        .atag_offset    = 0x100,
         .map_io         = mityomapl138_map_io,
         .init_irq       = cp_intc_init,
         .timer          = &davinci_timer,
diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c
index d60a80028ba3..38d6f644d8b9 100644
--- a/arch/arm/mach-davinci/board-neuros-osd2.c
+++ b/arch/arm/mach-davinci/board-neuros-osd2.c
@@ -272,7 +272,7 @@ static __init void davinci_ntosd2_init(void)
 
 MACHINE_START(NEUROS_OSD2, "Neuros OSD2")
         /* Maintainer: Neuros Technologies <neuros@groups.google.com> */
-        .boot_params    = (DAVINCI_DDR_BASE + 0x100),
+        .atag_offset    = 0x100,
         .map_io          = davinci_ntosd2_map_io,
         .init_irq       = davinci_irq_init,
         .timer          = &davinci_timer,
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index 237332a11421..c6701e4a795c 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -338,7 +338,7 @@ static void __init omapl138_hawk_map_io(void)
 }
 
 MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard")
-        .boot_params    = (DA8XX_DDR_BASE + 0x100),
+        .atag_offset    = 0x100,
         .map_io         = omapl138_hawk_map_io,
         .init_irq       = cp_intc_init,
         .timer          = &davinci_timer,
diff --git a/arch/arm/mach-davinci/board-sffsdr.c b/arch/arm/mach-davinci/board-sffsdr.c
index 5f4385c0a089..5dd4da9d2308 100644
--- a/arch/arm/mach-davinci/board-sffsdr.c
+++ b/arch/arm/mach-davinci/board-sffsdr.c
@@ -151,7 +151,7 @@ static __init void davinci_sffsdr_init(void)
 
 MACHINE_START(SFFSDR, "Lyrtech SFFSDR")
         /* Maintainer: Hugo Villeneuve hugo.villeneuve@lyrtech.com */
-        .boot_params  = (DAVINCI_DDR_BASE + 0x100),
+        .atag_offset  = 0x100,
         .map_io       = davinci_sffsdr_map_io,
         .init_irq     = davinci_irq_init,
         .timer        = &davinci_timer,
diff --git a/arch/arm/mach-davinci/board-tnetv107x-evm.c b/arch/arm/mach-davinci/board-tnetv107x-evm.c
index 782892065682..90ee7b5aabdc 100644
--- a/arch/arm/mach-davinci/board-tnetv107x-evm.c
+++ b/arch/arm/mach-davinci/board-tnetv107x-evm.c
@@ -277,7 +277,7 @@ console_initcall(tnetv107x_evm_console_init);
 #endif
 
 MACHINE_START(TNETV107X, "TNETV107X EVM")
-        .boot_params    = (TNETV107X_DDR_BASE + 0x100),
+        .atag_offset    = 0x100,
         .map_io         = tnetv107x_init,
         .init_irq       = cp_intc_init,
         .timer          = &davinci_timer,
diff --git a/arch/arm/mach-davinci/common.c b/arch/arm/mach-davinci/common.c
index 1d2557394235..865ffe5899ac 100644
--- a/arch/arm/mach-davinci/common.c
+++ b/arch/arm/mach-davinci/common.c
@@ -12,6 +12,7 @@
 #include <linux/io.h>
 #include <linux/etherdevice.h>
 #include <linux/davinci_emac.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/tlb.h>
 #include <asm/mach/map.h>
@@ -86,6 +87,8 @@ void __init davinci_common_init(struct davinci_soc_info *soc_info)
                 iotable_init(davinci_soc_info.io_desc,
                                 davinci_soc_info.io_desc_num);
 
+        init_consistent_dma_size(14 << 20);
+
         /*
          * Normally devicemaps_init() would flush caches and tlb after
          * mdesc->map_io(), but we must also do it here because of the CPU
diff --git a/arch/arm/mach-davinci/include/mach/memory.h b/arch/arm/mach-davinci/include/mach/memory.h
index 78731944a70c..885d23319668 100644
--- a/arch/arm/mach-davinci/include/mach/memory.h
+++ b/arch/arm/mach-davinci/include/mach/memory.h
@@ -36,9 +36,4 @@
 #define DDR2_MCLKSTOPEN_BIT     BIT(30)
 #define DDR2_LPMODEN_BIT        BIT(31)
 
-/*
- * Increase size of DMA-consistent memory region
- */
-#define CONSISTENT_DMA_SIZE (14<<20)
-
 #endif /* __ASM_ARCH_MEMORY_H */
diff --git a/arch/arm/mach-dove/cm-a510.c b/arch/arm/mach-dove/cm-a510.c
index 03e11f9dca97..c8a406f7e946 100644
--- a/arch/arm/mach-dove/cm-a510.c
+++ b/arch/arm/mach-dove/cm-a510.c
@@ -87,7 +87,7 @@ static void __init cm_a510_init(void)
 }
 
 MACHINE_START(CM_A510, "Compulab CM-A510 Board")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = cm_a510_init,
         .map_io         = dove_map_io,
         .init_early     = dove_init_early,
diff --git a/arch/arm/mach-dove/dove-db-setup.c b/arch/arm/mach-dove/dove-db-setup.c
index 2ac34ecfa745..11ea34e4fc76 100644
--- a/arch/arm/mach-dove/dove-db-setup.c
+++ b/arch/arm/mach-dove/dove-db-setup.c
@@ -94,7 +94,7 @@ static void __init dove_db_init(void)
 }
 
 MACHINE_START(DOVE_DB, "Marvell DB-MV88AP510-BP Development Board")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = dove_db_init,
         .map_io         = dove_map_io,
         .init_early     = dove_init_early,
diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c
index 087bc771ac23..d0ce8abdd4b6 100644
--- a/arch/arm/mach-ebsa110/core.c
+++ b/arch/arm/mach-ebsa110/core.c
@@ -280,7 +280,7 @@ arch_initcall(ebsa110_init);
 
 MACHINE_START(EBSA110, "EBSA110")
         /* Maintainer: Russell King */
-        .boot_params    = 0x00000400,
+        .atag_offset    = 0x400,
         .reserve_lp0    = 1,
         .reserve_lp2    = 1,
         .soft_reboot    = 1,
diff --git a/arch/arm/mach-ep93xx/adssphere.c b/arch/arm/mach-ep93xx/adssphere.c
index 61b98ce4b673..0713448206a5 100644
--- a/arch/arm/mach-ep93xx/adssphere.c
+++ b/arch/arm/mach-ep93xx/adssphere.c
@@ -33,7 +33,7 @@ static void __init adssphere_init_machine(void)
 
 MACHINE_START(ADSSPHERE, "ADS Sphere board")
         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
diff --git a/arch/arm/mach-ep93xx/edb93xx.c b/arch/arm/mach-ep93xx/edb93xx.c
index 9969bb115f60..257175edc575 100644
--- a/arch/arm/mach-ep93xx/edb93xx.c
+++ b/arch/arm/mach-ep93xx/edb93xx.c
@@ -240,7 +240,7 @@ static void __init edb93xx_init_machine(void)
 #ifdef CONFIG_MACH_EDB9301
 MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board")
         /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
@@ -251,7 +251,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_EDB9302
 MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board")
         /* Maintainer: George Kashperko <george@chas.com.ua> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
@@ -262,7 +262,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_EDB9302A
 MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board")
         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-        .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
@@ -273,7 +273,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_EDB9307
 MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board")
         /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
@@ -284,7 +284,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_EDB9307A
 MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board")
         /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
-        .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
@@ -295,7 +295,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_EDB9312
 MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board")
         /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
@@ -306,7 +306,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_EDB9315
 MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board")
         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
@@ -317,7 +317,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_EDB9315A
 MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board")
         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-        .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
diff --git a/arch/arm/mach-ep93xx/gesbc9312.c b/arch/arm/mach-ep93xx/gesbc9312.c
index 9bd3152bff9a..45ee205856f8 100644
--- a/arch/arm/mach-ep93xx/gesbc9312.c
+++ b/arch/arm/mach-ep93xx/gesbc9312.c
@@ -33,7 +33,7 @@ static void __init gesbc9312_init_machine(void)
 
 MACHINE_START(GESBC9312, "Glomation GESBC-9312-sx")
         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
diff --git a/arch/arm/mach-ep93xx/micro9.c b/arch/arm/mach-ep93xx/micro9.c
index 7adea6258efe..e72f7368876e 100644
--- a/arch/arm/mach-ep93xx/micro9.c
+++ b/arch/arm/mach-ep93xx/micro9.c
@@ -77,7 +77,7 @@ static void __init micro9_init_machine(void)
 #ifdef CONFIG_MACH_MICRO9H
 MACHINE_START(MICRO9, "Contec Micro9-High")
         /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
@@ -88,7 +88,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_MICRO9M
 MACHINE_START(MICRO9M, "Contec Micro9-Mid")
         /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
@@ -99,7 +99,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_MICRO9L
 MACHINE_START(MICRO9L, "Contec Micro9-Lite")
         /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
@@ -110,7 +110,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_MICRO9S
 MACHINE_START(MICRO9S, "Contec Micro9-Slim")
         /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
diff --git a/arch/arm/mach-ep93xx/simone.c b/arch/arm/mach-ep93xx/simone.c
index 8392e95d7cea..238bc603da86 100644
--- a/arch/arm/mach-ep93xx/simone.c
+++ b/arch/arm/mach-ep93xx/simone.c
@@ -65,8 +65,8 @@ static void __init simone_init_machine(void)
 }
 
 MACHINE_START(SIM_ONE, "Simplemachines Sim.One Board")
-/* Maintainer: Ryan Mallon */
-        .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
+        /* Maintainer: Ryan Mallon */
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
diff --git a/arch/arm/mach-ep93xx/snappercl15.c b/arch/arm/mach-ep93xx/snappercl15.c
index 2e9c614757e4..3bdf3a2e5ad0 100644
--- a/arch/arm/mach-ep93xx/snappercl15.c
+++ b/arch/arm/mach-ep93xx/snappercl15.c
@@ -163,7 +163,7 @@ static void __init snappercl15_init_machine(void)
 
 MACHINE_START(SNAPPER_CL15, "Bluewater Systems Snapper CL15")
         /* Maintainer: Ryan Mallon */
-        .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ep93xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index c2d2cf40ead9..1ade3c340507 100644
--- a/arch/arm/mach-ep93xx/ts72xx.c
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -257,7 +257,7 @@ static void __init ts72xx_init_machine(void)
 
 MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC")
         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-        .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ts72xx_map_io,
         .init_irq       = ep93xx_init_irq,
         .timer          = &ep93xx_timer,
diff --git a/arch/arm/mach-exynos4/mach-armlex4210.c b/arch/arm/mach-exynos4/mach-armlex4210.c
index b482c6285fc4..f0ca6c157d29 100644
--- a/arch/arm/mach-exynos4/mach-armlex4210.c
+++ b/arch/arm/mach-exynos4/mach-armlex4210.c
@@ -207,7 +207,7 @@ static void __init armlex4210_machine_init(void)
 
 MACHINE_START(ARMLEX4210, "ARMLEX4210")
         /* Maintainer: Alim Akhtar <alim.akhtar@samsung.com> */
-        .boot_params    = S5P_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = exynos4_init_irq,
         .map_io         = armlex4210_map_io,
         .init_machine   = armlex4210_machine_init,
diff --git a/arch/arm/mach-exynos4/mach-nuri.c b/arch/arm/mach-exynos4/mach-nuri.c
index 43be71b799cb..6e0536818bf5 100644
--- a/arch/arm/mach-exynos4/mach-nuri.c
+++ b/arch/arm/mach-exynos4/mach-nuri.c
@@ -1152,7 +1152,7 @@ static void __init nuri_machine_init(void)
 
 MACHINE_START(NURI, "NURI")
         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
-        .boot_params    = S5P_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = exynos4_init_irq,
         .map_io         = nuri_map_io,
         .init_machine   = nuri_machine_init,
diff --git a/arch/arm/mach-exynos4/mach-smdkc210.c b/arch/arm/mach-exynos4/mach-smdkc210.c
index a7c65e05c1eb..b24ddd7ad8fe 100644
--- a/arch/arm/mach-exynos4/mach-smdkc210.c
+++ b/arch/arm/mach-exynos4/mach-smdkc210.c
@@ -301,7 +301,7 @@ static void __init smdkc210_machine_init(void)
 
 MACHINE_START(SMDKC210, "SMDKC210")
         /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
-        .boot_params    = S5P_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = exynos4_init_irq,
         .map_io         = smdkc210_map_io,
         .init_machine   = smdkc210_machine_init,
diff --git a/arch/arm/mach-exynos4/mach-smdkv310.c b/arch/arm/mach-exynos4/mach-smdkv310.c
index ea4149556860..d90fcddbee1f 100644
--- a/arch/arm/mach-exynos4/mach-smdkv310.c
+++ b/arch/arm/mach-exynos4/mach-smdkv310.c
@@ -255,7 +255,7 @@ static void __init smdkv310_machine_init(void)
 MACHINE_START(SMDKV310, "SMDKV310")
         /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
         /* Maintainer: Changhwan Youn <chaos.youn@samsung.com> */
-        .boot_params    = S5P_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = exynos4_init_irq,
         .map_io         = smdkv310_map_io,
         .init_machine   = smdkv310_machine_init,
diff --git a/arch/arm/mach-exynos4/mach-universal_c210.c b/arch/arm/mach-exynos4/mach-universal_c210.c
index b3b5d8911004..2aac6f755c8e 100644
--- a/arch/arm/mach-exynos4/mach-universal_c210.c
+++ b/arch/arm/mach-exynos4/mach-universal_c210.c
@@ -762,7 +762,7 @@ static void __init universal_machine_init(void)
 
 MACHINE_START(UNIVERSAL_C210, "UNIVERSAL_C210")
         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
-        .boot_params    = S5P_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = exynos4_init_irq,
         .map_io         = universal_map_io,
         .init_machine   = universal_machine_init,
diff --git a/arch/arm/mach-footbridge/cats-hw.c b/arch/arm/mach-footbridge/cats-hw.c
index 5b1a8db779be..a3da5d1106c2 100644
--- a/arch/arm/mach-footbridge/cats-hw.c
+++ b/arch/arm/mach-footbridge/cats-hw.c
@@ -86,7 +86,7 @@ fixup_cats(struct machine_desc *desc, struct tag *tags,
 
 MACHINE_START(CATS, "Chalice-CATS")
         /* Maintainer: Philip Blundell */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .soft_reboot    = 1,
         .fixup          = fixup_cats,
         .map_io         = footbridge_map_io,
diff --git a/arch/arm/mach-footbridge/ebsa285.c b/arch/arm/mach-footbridge/ebsa285.c
index 2ef69ff44ba8..012210cf7d16 100644
--- a/arch/arm/mach-footbridge/ebsa285.c
+++ b/arch/arm/mach-footbridge/ebsa285.c
@@ -15,7 +15,7 @@
 
 MACHINE_START(EBSA285, "EBSA285")
         /* Maintainer: Russell King */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .video_start    = 0x000a0000,
         .video_end      = 0x000bffff,
         .map_io         = footbridge_map_io,
diff --git a/arch/arm/mach-footbridge/netwinder-hw.c b/arch/arm/mach-footbridge/netwinder-hw.c
index 06e514f372d0..d8c1c922e24c 100644
--- a/arch/arm/mach-footbridge/netwinder-hw.c
+++ b/arch/arm/mach-footbridge/netwinder-hw.c
@@ -648,7 +648,7 @@ fixup_netwinder(struct machine_desc *desc, struct tag *tags,
 
 MACHINE_START(NETWINDER, "Rebel-NetWinder")
         /* Maintainer: Russell King/Rebel.com */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .video_start    = 0x000a0000,
         .video_end      = 0x000bffff,
         .reserve_lp0    = 1,
diff --git a/arch/arm/mach-footbridge/personal.c b/arch/arm/mach-footbridge/personal.c
index 3285e91ca8c1..f41dba39b327 100644
--- a/arch/arm/mach-footbridge/personal.c
+++ b/arch/arm/mach-footbridge/personal.c
@@ -15,7 +15,7 @@
 
 MACHINE_START(PERSONAL_SERVER, "Compaq-PersonalServer")
         /* Maintainer: Jamey Hicks / George France */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = footbridge_map_io,
         .init_irq       = footbridge_init_irq,
         .timer          = &footbridge_timer,
diff --git a/arch/arm/mach-gemini/board-nas4220b.c b/arch/arm/mach-gemini/board-nas4220b.c
index 0cf7a07c3f3f..5927d3c253aa 100644
--- a/arch/arm/mach-gemini/board-nas4220b.c
+++ b/arch/arm/mach-gemini/board-nas4220b.c
@@ -102,7 +102,7 @@ static void __init ib4220b_init(void)
 }
 
 MACHINE_START(NAS4220B, "Raidsonic NAS IB-4220-B")
-        .boot_params    = 0x100,
+        .atag_offset    = 0x100,
         .map_io         = gemini_map_io,
         .init_irq       = gemini_init_irq,
         .timer          = &ib4220b_timer,
diff --git a/arch/arm/mach-gemini/board-rut1xx.c b/arch/arm/mach-gemini/board-rut1xx.c
index 4fa09af99495..cd7437a1cea0 100644
--- a/arch/arm/mach-gemini/board-rut1xx.c
+++ b/arch/arm/mach-gemini/board-rut1xx.c
@@ -86,7 +86,7 @@ static void __init rut1xx_init(void)
 }
 
 MACHINE_START(RUT100, "Teltonika RUT100")
-        .boot_params    = 0x100,
+        .atag_offset    = 0x100,
         .map_io         = gemini_map_io,
         .init_irq       = gemini_init_irq,
         .timer          = &rut1xx_timer,
diff --git a/arch/arm/mach-gemini/board-wbd111.c b/arch/arm/mach-gemini/board-wbd111.c
index 88cc422ee444..a367880368f1 100644
--- a/arch/arm/mach-gemini/board-wbd111.c
+++ b/arch/arm/mach-gemini/board-wbd111.c
@@ -129,7 +129,7 @@ static void __init wbd111_init(void)
 }
 
 MACHINE_START(WBD111, "Wiliboard WBD-111")
-        .boot_params    = 0x100,
+        .atag_offset    = 0x100,
         .map_io         = gemini_map_io,
         .init_irq       = gemini_init_irq,
         .timer          = &wbd111_timer,
diff --git a/arch/arm/mach-gemini/board-wbd222.c b/arch/arm/mach-gemini/board-wbd222.c
index 3a220347bc88..f382811c1319 100644
--- a/arch/arm/mach-gemini/board-wbd222.c
+++ b/arch/arm/mach-gemini/board-wbd222.c
@@ -129,7 +129,7 @@ static void __init wbd222_init(void)
 }
 
 MACHINE_START(WBD222, "Wiliboard WBD-222")
-        .boot_params    = 0x100,
+        .atag_offset    = 0x100,
         .map_io         = gemini_map_io,
         .init_irq       = gemini_init_irq,
         .timer          = &wbd222_timer,
diff --git a/arch/arm/mach-h720x/h7201-eval.c b/arch/arm/mach-h720x/h7201-eval.c
index 65f1bea958e5..9886f19805f4 100644
--- a/arch/arm/mach-h720x/h7201-eval.c
+++ b/arch/arm/mach-h720x/h7201-eval.c
@@ -29,7 +29,7 @@
 
 MACHINE_START(H7201, "Hynix GMS30C7201")
         /* Maintainer: Robert Schwebel, Pengutronix */
-        .boot_params    = 0xc0001000,
+        .atag_offset    = 0x1000,
         .map_io         = h720x_map_io,
         .init_irq       = h720x_init_irq,
         .timer          = &h7201_timer,
diff --git a/arch/arm/mach-h720x/h7202-eval.c b/arch/arm/mach-h720x/h7202-eval.c
index 884584a09752..284a134819e1 100644
--- a/arch/arm/mach-h720x/h7202-eval.c
+++ b/arch/arm/mach-h720x/h7202-eval.c
@@ -71,7 +71,7 @@ static void __init init_eval_h7202(void)
 
 MACHINE_START(H7202, "Hynix HMS30C7202")
         /* Maintainer: Robert Schwebel, Pengutronix */
-        .boot_params    = 0x40000100,
+        .atag_offset    = 0x100,
         .map_io         = h720x_map_io,
         .init_irq       = h7202_init_irq,
         .timer          = &h7202_timer,
diff --git a/arch/arm/mach-imx/mach-armadillo5x0.c b/arch/arm/mach-imx/mach-armadillo5x0.c
index ede2710f8b76..215259083945 100644
--- a/arch/arm/mach-imx/mach-armadillo5x0.c
+++ b/arch/arm/mach-imx/mach-armadillo5x0.c
@@ -558,7 +558,7 @@ static struct sys_timer armadillo5x0_timer = {
 
 MACHINE_START(ARMADILLO5X0, "Armadillo-500")
         /* Maintainer: Alberto Panizzo  */
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx31_map_io,
         .init_early = imx31_init_early,
         .init_irq = mx31_init_irq,
diff --git a/arch/arm/mach-imx/mach-cpuimx27.c b/arch/arm/mach-imx/mach-cpuimx27.c
index f851fe903687..b1ec2cf53bb0 100644
--- a/arch/arm/mach-imx/mach-cpuimx27.c
+++ b/arch/arm/mach-imx/mach-cpuimx27.c
@@ -311,7 +311,7 @@ static struct sys_timer eukrea_cpuimx27_timer = {
 };
 
 MACHINE_START(EUKREA_CPUIMX27, "EUKREA CPUIMX27")
-        .boot_params = MX27_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx27_map_io,
         .init_early = imx27_init_early,
         .init_irq = mx27_init_irq,
diff --git a/arch/arm/mach-imx/mach-cpuimx35.c b/arch/arm/mach-imx/mach-cpuimx35.c
index 4bd083ba9af2..470b654b0e6e 100644
--- a/arch/arm/mach-imx/mach-cpuimx35.c
+++ b/arch/arm/mach-imx/mach-cpuimx35.c
@@ -194,7 +194,7 @@ struct sys_timer eukrea_cpuimx35_timer = {
 
 MACHINE_START(EUKREA_CPUIMX35SD, "Eukrea CPUIMX35")
         /* Maintainer: Eukrea Electromatique */
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx35_map_io,
         .init_early = imx35_init_early,
         .init_irq = mx35_init_irq,
diff --git a/arch/arm/mach-imx/mach-eukrea_cpuimx25.c b/arch/arm/mach-imx/mach-eukrea_cpuimx25.c
index 2442d5da883d..9163318e95a2 100644
--- a/arch/arm/mach-imx/mach-eukrea_cpuimx25.c
+++ b/arch/arm/mach-imx/mach-eukrea_cpuimx25.c
@@ -163,7 +163,7 @@ static struct sys_timer eukrea_cpuimx25_timer = {
 
 MACHINE_START(EUKREA_CPUIMX25SD, "Eukrea CPUIMX25")
         /* Maintainer: Eukrea Electromatique */
-        .boot_params = MX25_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx25_map_io,
         .init_early = imx25_init_early,
         .init_irq = mx25_init_irq,
diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
index 6778f8193bc6..22306ce28658 100644
--- a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
+++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
@@ -275,7 +275,7 @@ static struct sys_timer visstrim_m10_timer = {
 };
 
 MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
-        .boot_params = MX27_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx27_map_io,
         .init_early = imx27_init_early,
         .init_irq = mx27_init_irq,
diff --git a/arch/arm/mach-imx/mach-imx27ipcam.c b/arch/arm/mach-imx/mach-imx27ipcam.c
index 272f793e9247..8da48b33fc53 100644
--- a/arch/arm/mach-imx/mach-imx27ipcam.c
+++ b/arch/arm/mach-imx/mach-imx27ipcam.c
@@ -71,7 +71,7 @@ static struct sys_timer mx27ipcam_timer = {
 
 MACHINE_START(IMX27IPCAM, "Freescale IMX27IPCAM")
         /* maintainer: Freescale Semiconductor, Inc. */
-        .boot_params = MX27_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx27_map_io,
         .init_early = imx27_init_early,
         .init_irq = mx27_init_irq,
diff --git a/arch/arm/mach-imx/mach-imx27lite.c b/arch/arm/mach-imx/mach-imx27lite.c
index d81a769fe895..21a14a20e2c3 100644
--- a/arch/arm/mach-imx/mach-imx27lite.c
+++ b/arch/arm/mach-imx/mach-imx27lite.c
@@ -77,7 +77,7 @@ static struct sys_timer mx27lite_timer = {
 };
 
 MACHINE_START(IMX27LITE, "LogicPD i.MX27LITE")
-        .boot_params = MX27_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx27_map_io,
         .init_early = imx27_init_early,
         .init_irq = mx27_init_irq,
diff --git a/arch/arm/mach-imx/mach-kzm_arm11_01.c b/arch/arm/mach-imx/mach-kzm_arm11_01.c
index e472a1d88058..7c20e9e58006 100644
--- a/arch/arm/mach-imx/mach-kzm_arm11_01.c
+++ b/arch/arm/mach-imx/mach-kzm_arm11_01.c
@@ -271,7 +271,7 @@ static struct sys_timer kzm_timer = {
 };
 
 MACHINE_START(KZM_ARM11_01, "Kyoto Microcomputer Co., Ltd. KZM-ARM11-01")
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = kzm_map_io,
         .init_early = imx31_init_early,
         .init_irq = mx31_init_irq,
diff --git a/arch/arm/mach-imx/mach-mx1ads.c b/arch/arm/mach-imx/mach-mx1ads.c
index 5cd8bee46960..530ea08dbafd 100644
--- a/arch/arm/mach-imx/mach-mx1ads.c
+++ b/arch/arm/mach-imx/mach-mx1ads.c
@@ -145,7 +145,7 @@ struct sys_timer mx1ads_timer = {
 
 MACHINE_START(MX1ADS, "Freescale MX1ADS")
         /* Maintainer: Sascha Hauer, Pengutronix */
-        .boot_params = MX1_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx1_map_io,
         .init_early = imx1_init_early,
         .init_irq = mx1_init_irq,
@@ -154,7 +154,7 @@ MACHINE_START(MX1ADS, "Freescale MX1ADS")
 MACHINE_END
 
 MACHINE_START(MXLADS, "Freescale MXLADS")
-        .boot_params = MX1_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx1_map_io,
         .init_early = imx1_init_early,
         .init_irq = mx1_init_irq,
diff --git a/arch/arm/mach-imx/mach-mx21ads.c b/arch/arm/mach-imx/mach-mx21ads.c
index d389ecf9b5a8..e56828da26b2 100644
--- a/arch/arm/mach-imx/mach-mx21ads.c
+++ b/arch/arm/mach-imx/mach-mx21ads.c
@@ -305,7 +305,7 @@ static struct sys_timer mx21ads_timer = {
 
 MACHINE_START(MX21ADS, "Freescale i.MX21ADS")
         /* maintainer: Freescale Semiconductor, Inc. */
-        .boot_params = MX21_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx21ads_map_io,
         .init_early = imx21_init_early,
         .init_irq = mx21_init_irq,
diff --git a/arch/arm/mach-imx/mach-mx25_3ds.c b/arch/arm/mach-imx/mach-mx25_3ds.c
index 7f66a91df361..dd25ee82e70a 100644
--- a/arch/arm/mach-imx/mach-mx25_3ds.c
+++ b/arch/arm/mach-imx/mach-mx25_3ds.c
@@ -253,7 +253,7 @@ static struct sys_timer mx25pdk_timer = {
 
 MACHINE_START(MX25_3DS, "Freescale MX25PDK (3DS)")
         /* Maintainer: Freescale Semiconductor, Inc. */
-        .boot_params = MX25_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx25_map_io,
         .init_early = imx25_init_early,
         .init_irq = mx25_init_irq,
diff --git a/arch/arm/mach-imx/mach-mx27_3ds.c b/arch/arm/mach-imx/mach-mx27_3ds.c
index 6fa6934ab150..2eafbac2c763 100644
--- a/arch/arm/mach-imx/mach-mx27_3ds.c
+++ b/arch/arm/mach-imx/mach-mx27_3ds.c
@@ -421,7 +421,7 @@ static struct sys_timer mx27pdk_timer = {
 
 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
         /* maintainer: Freescale Semiconductor, Inc. */
-        .boot_params = MX27_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx27_map_io,
         .init_early = imx27_init_early,
         .init_irq = mx27_init_irq,
diff --git a/arch/arm/mach-imx/mach-mx27ads.c b/arch/arm/mach-imx/mach-mx27ads.c
index fc26ed71b9ed..efe6109099fd 100644
--- a/arch/arm/mach-imx/mach-mx27ads.c
+++ b/arch/arm/mach-imx/mach-mx27ads.c
@@ -345,7 +345,7 @@ static void __init mx27ads_map_io(void)
 
 MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
         /* maintainer: Freescale Semiconductor, Inc. */
-        .boot_params = MX27_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx27ads_map_io,
         .init_early = imx27_init_early,
         .init_irq = mx27_init_irq,
diff --git a/arch/arm/mach-imx/mach-mx31_3ds.c b/arch/arm/mach-imx/mach-mx31_3ds.c
index c20be7530927..589066fb3316 100644
--- a/arch/arm/mach-imx/mach-mx31_3ds.c
+++ b/arch/arm/mach-imx/mach-mx31_3ds.c
@@ -764,7 +764,7 @@ static void __init mx31_3ds_reserve(void)
 
 MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
         /* Maintainer: Freescale Semiconductor, Inc. */
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx31_map_io,
         .init_early = imx31_init_early,
         .init_irq = mx31_init_irq,
diff --git a/arch/arm/mach-imx/mach-mx31ads.c b/arch/arm/mach-imx/mach-mx31ads.c
index 29ca8907a780..910c4561d35f 100644
--- a/arch/arm/mach-imx/mach-mx31ads.c
+++ b/arch/arm/mach-imx/mach-mx31ads.c
@@ -535,7 +535,7 @@ static struct sys_timer mx31ads_timer = {
 
 MACHINE_START(MX31ADS, "Freescale MX31ADS")
         /* Maintainer: Freescale Semiconductor, Inc. */
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx31ads_map_io,
         .init_early = imx31_init_early,
         .init_irq = mx31ads_init_irq,
diff --git a/arch/arm/mach-imx/mach-mx31lilly.c b/arch/arm/mach-imx/mach-mx31lilly.c
index 126913ad106a..e92eaf91a7be 100644
--- a/arch/arm/mach-imx/mach-mx31lilly.c
+++ b/arch/arm/mach-imx/mach-mx31lilly.c
@@ -295,7 +295,7 @@ static struct sys_timer mx31lilly_timer = {
 };
 
 MACHINE_START(LILLY1131, "INCO startec LILLY-1131")
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx31_map_io,
         .init_early = imx31_init_early,
         .init_irq = mx31_init_irq,
diff --git a/arch/arm/mach-imx/mach-mx31lite.c b/arch/arm/mach-imx/mach-mx31lite.c
index 4b47fd9fdd89..5242cb78b563 100644
--- a/arch/arm/mach-imx/mach-mx31lite.c
+++ b/arch/arm/mach-imx/mach-mx31lite.c
@@ -280,7 +280,7 @@ struct sys_timer mx31lite_timer = {
 
 MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM")
         /* Maintainer: Freescale Semiconductor, Inc. */
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx31lite_map_io,
         .init_early = imx31_init_early,
         .init_irq = mx31_init_irq,
diff --git a/arch/arm/mach-imx/mach-mx31moboard.c b/arch/arm/mach-imx/mach-mx31moboard.c
index b358383120e7..1d01ef28f25d 100644
--- a/arch/arm/mach-imx/mach-mx31moboard.c
+++ b/arch/arm/mach-imx/mach-mx31moboard.c
@@ -567,7 +567,7 @@ static void __init mx31moboard_reserve(void)
 
 MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
         /* Maintainer: Valentin Longchamp, EPFL Mobots group */
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .reserve = mx31moboard_reserve,
         .map_io = mx31_map_io,
         .init_early = imx31_init_early,
diff --git a/arch/arm/mach-imx/mach-mx35_3ds.c b/arch/arm/mach-imx/mach-mx35_3ds.c
index b3b9bd8ac2a3..f2a873dc08ce 100644
--- a/arch/arm/mach-imx/mach-mx35_3ds.c
+++ b/arch/arm/mach-imx/mach-mx35_3ds.c
@@ -217,7 +217,7 @@ struct sys_timer mx35pdk_timer = {
 
 MACHINE_START(MX35_3DS, "Freescale MX35PDK")
         /* Maintainer: Freescale Semiconductor, Inc */
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx35_map_io,
         .init_early = imx35_init_early,
         .init_irq = mx35_init_irq,
diff --git a/arch/arm/mach-imx/mach-mxt_td60.c b/arch/arm/mach-imx/mach-mxt_td60.c
index c85876fed663..5ec3989704fd 100644
--- a/arch/arm/mach-imx/mach-mxt_td60.c
+++ b/arch/arm/mach-imx/mach-mxt_td60.c
@@ -267,7 +267,7 @@ static struct sys_timer mxt_td60_timer = {
 
 MACHINE_START(MXT_TD60, "Maxtrack i-MXT TD60")
         /* maintainer: Maxtrack Industrial */
-        .boot_params = MX27_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx27_map_io,
         .init_early = imx27_init_early,
         .init_irq = mx27_init_irq,
diff --git a/arch/arm/mach-imx/mach-pca100.c b/arch/arm/mach-imx/mach-pca100.c
index 71083aa16038..0f6bd1199038 100644
--- a/arch/arm/mach-imx/mach-pca100.c
+++ b/arch/arm/mach-imx/mach-pca100.c
@@ -435,7 +435,7 @@ static struct sys_timer pca100_timer = {
 };
 
 MACHINE_START(PCA100, "phyCARD-i.MX27")
-        .boot_params = MX27_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx27_map_io,
         .init_early = imx27_init_early,
         .init_irq = mx27_init_irq,
diff --git a/arch/arm/mach-imx/mach-pcm037.c b/arch/arm/mach-imx/mach-pcm037.c
index f45b7cd72c8a..186d4eb90796 100644
--- a/arch/arm/mach-imx/mach-pcm037.c
+++ b/arch/arm/mach-imx/mach-pcm037.c
@@ -688,7 +688,7 @@ static void __init pcm037_reserve(void)
 
 MACHINE_START(PCM037, "Phytec Phycore pcm037")
         /* Maintainer: Pengutronix */
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .reserve = pcm037_reserve,
         .map_io = mx31_map_io,
         .init_early = imx31_init_early,
diff --git a/arch/arm/mach-imx/mach-pcm038.c b/arch/arm/mach-imx/mach-pcm038.c
index 2d6a64bbac44..091bcf87e1a0 100644
--- a/arch/arm/mach-imx/mach-pcm038.c
+++ b/arch/arm/mach-imx/mach-pcm038.c
@@ -349,7 +349,7 @@ static struct sys_timer pcm038_timer = {
 };
 
 MACHINE_START(PCM038, "phyCORE-i.MX27")
-        .boot_params = MX27_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx27_map_io,
         .init_early = imx27_init_early,
         .init_irq = mx27_init_irq,
diff --git a/arch/arm/mach-imx/mach-pcm043.c b/arch/arm/mach-imx/mach-pcm043.c
index 660ec3e80cf8..0a4d31de7738 100644
--- a/arch/arm/mach-imx/mach-pcm043.c
+++ b/arch/arm/mach-imx/mach-pcm043.c
@@ -418,7 +418,7 @@ struct sys_timer pcm043_timer = {
 
 MACHINE_START(PCM043, "Phytec Phycore pcm043")
         /* Maintainer: Pengutronix */
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx35_map_io,
         .init_early = imx35_init_early,
         .init_irq = mx35_init_irq,
diff --git a/arch/arm/mach-imx/mach-qong.c b/arch/arm/mach-imx/mach-qong.c
index 3626f486498a..9e11359c324c 100644
--- a/arch/arm/mach-imx/mach-qong.c
+++ b/arch/arm/mach-imx/mach-qong.c
@@ -262,7 +262,7 @@ static struct sys_timer qong_timer = {
 
 MACHINE_START(QONG, "Dave/DENX QongEVB-LITE")
         /* Maintainer: DENX Software Engineering GmbH */
-        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx31_map_io,
         .init_early = imx31_init_early,
         .init_irq = mx31_init_irq,
diff --git a/arch/arm/mach-imx/mach-scb9328.c b/arch/arm/mach-imx/mach-scb9328.c
index db2d60470e15..85d32845ee1e 100644
--- a/arch/arm/mach-imx/mach-scb9328.c
+++ b/arch/arm/mach-imx/mach-scb9328.c
@@ -137,7 +137,7 @@ static struct sys_timer scb9328_timer = {
 
 MACHINE_START(SCB9328, "Synertronixx scb9328")
         /* Sascha Hauer */
-        .boot_params = 0x08000100,
+        .atag_offset = 100,
         .map_io = mx1_map_io,
         .init_early = imx1_init_early,
         .init_irq = mx1_init_irq,
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index fcf0ae95651f..b19ae1805569 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -457,7 +457,7 @@ static struct sys_timer ap_timer = {
 
 MACHINE_START(INTEGRATOR, "ARM-Integrator")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .reserve        = integrator_reserve,
         .map_io         = ap_map_io,
         .init_early     = integrator_init_early,
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 4eb03ab5cb46..5de49c33e4d4 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -492,7 +492,7 @@ static struct sys_timer cp_timer = {
 
 MACHINE_START(CINTEGRATOR, "ARM-IntegratorCP")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .reserve        = integrator_reserve,
         .map_io         = intcp_map_io,
         .init_early     = intcp_init_early,
diff --git a/arch/arm/mach-iop13xx/iq81340mc.c b/arch/arm/mach-iop13xx/iq81340mc.c
index 23dfaffc586c..4cf2cc477eae 100644
--- a/arch/arm/mach-iop13xx/iq81340mc.c
+++ b/arch/arm/mach-iop13xx/iq81340mc.c
@@ -91,7 +91,7 @@ static struct sys_timer iq81340mc_timer = {
 
 MACHINE_START(IQ81340MC, "Intel IQ81340MC")
         /* Maintainer: Dan Williams <dan.j.williams@intel.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = iop13xx_map_io,
         .init_irq       = iop13xx_init_irq,
         .timer          = &iq81340mc_timer,
diff --git a/arch/arm/mach-iop13xx/iq81340sc.c b/arch/arm/mach-iop13xx/iq81340sc.c
index df3492a9c280..cd9e27499a1e 100644
--- a/arch/arm/mach-iop13xx/iq81340sc.c
+++ b/arch/arm/mach-iop13xx/iq81340sc.c
@@ -93,7 +93,7 @@ static struct sys_timer iq81340sc_timer = {
 
 MACHINE_START(IQ81340SC, "Intel IQ81340SC")
         /* Maintainer: Dan Williams <dan.j.williams@intel.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = iop13xx_map_io,
         .init_irq       = iop13xx_init_irq,
         .timer          = &iq81340sc_timer,
diff --git a/arch/arm/mach-iop32x/em7210.c b/arch/arm/mach-iop32x/em7210.c
index 6cbffbfc2bba..4325055d4e19 100644
--- a/arch/arm/mach-iop32x/em7210.c
+++ b/arch/arm/mach-iop32x/em7210.c
@@ -203,7 +203,7 @@ static void __init em7210_init_machine(void)
 }
 
 MACHINE_START(EM7210, "Lanner EM7210")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = em7210_map_io,
         .init_irq       = iop32x_init_irq,
         .timer          = &em7210_timer,
diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c
index ceef5d4dce1a..0edc88020577 100644
--- a/arch/arm/mach-iop32x/glantank.c
+++ b/arch/arm/mach-iop32x/glantank.c
@@ -207,7 +207,7 @@ static void __init glantank_init_machine(void)
 
 MACHINE_START(GLANTANK, "GLAN Tank")
         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = glantank_map_io,
         .init_irq       = iop32x_init_irq,
         .timer          = &glantank_timer,
diff --git a/arch/arm/mach-iop32x/iq31244.c b/arch/arm/mach-iop32x/iq31244.c
index 3a62514dae7c..9e7aaccfeba0 100644
--- a/arch/arm/mach-iop32x/iq31244.c
+++ b/arch/arm/mach-iop32x/iq31244.c
@@ -313,7 +313,7 @@ __setup("force_ep80219", force_ep80219_setup);
 
 MACHINE_START(IQ31244, "Intel IQ31244")
         /* Maintainer: Intel Corp. */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = iq31244_map_io,
         .init_irq       = iop32x_init_irq,
         .timer          = &iq31244_timer,
@@ -327,7 +327,7 @@ MACHINE_END
  */
 MACHINE_START(EP80219, "Intel EP80219")
         /* Maintainer: Intel Corp. */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = iq31244_map_io,
         .init_irq       = iop32x_init_irq,
         .timer          = &iq31244_timer,
diff --git a/arch/arm/mach-iop32x/iq80321.c b/arch/arm/mach-iop32x/iq80321.c
index 35b7e6914d3b..53ea86f649dd 100644
--- a/arch/arm/mach-iop32x/iq80321.c
+++ b/arch/arm/mach-iop32x/iq80321.c
@@ -186,7 +186,7 @@ static void __init iq80321_init_machine(void)
 
 MACHINE_START(IQ80321, "Intel IQ80321")
         /* Maintainer: Intel Corp. */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = iq80321_map_io,
         .init_irq       = iop32x_init_irq,
         .timer          = &iq80321_timer,
diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
index 1a374eab6007..d7269279968c 100644
--- a/arch/arm/mach-iop32x/n2100.c
+++ b/arch/arm/mach-iop32x/n2100.c
@@ -327,7 +327,7 @@ static void __init n2100_init_machine(void)
 
 MACHINE_START(N2100, "Thecus N2100")
         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = n2100_map_io,
         .init_irq       = iop32x_init_irq,
         .timer          = &n2100_timer,
diff --git a/arch/arm/mach-iop33x/iq80331.c b/arch/arm/mach-iop33x/iq80331.c
index 637c0272d5e0..9e14ccc56f8e 100644
--- a/arch/arm/mach-iop33x/iq80331.c
+++ b/arch/arm/mach-iop33x/iq80331.c
@@ -141,7 +141,7 @@ static void __init iq80331_init_machine(void)
 
 MACHINE_START(IQ80331, "Intel IQ80331")
         /* Maintainer: Intel Corp. */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = iop3xx_map_io,
         .init_irq       = iop33x_init_irq,
         .timer          = &iq80331_timer,
diff --git a/arch/arm/mach-iop33x/iq80332.c b/arch/arm/mach-iop33x/iq80332.c
index 90a0436d7255..09c899a2523f 100644
--- a/arch/arm/mach-iop33x/iq80332.c
+++ b/arch/arm/mach-iop33x/iq80332.c
@@ -141,7 +141,7 @@ static void __init iq80332_init_machine(void)
 
 MACHINE_START(IQ80332, "Intel IQ80332")
         /* Maintainer: Intel Corp. */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = iop3xx_map_io,
         .init_irq       = iop33x_init_irq,
         .timer          = &iq80332_timer,
diff --git a/arch/arm/mach-ixp2000/enp2611.c b/arch/arm/mach-ixp2000/enp2611.c
index 62c60ade5274..af9994537e01 100644
--- a/arch/arm/mach-ixp2000/enp2611.c
+++ b/arch/arm/mach-ixp2000/enp2611.c
@@ -254,7 +254,7 @@ static void __init enp2611_init_machine(void)
 
 MACHINE_START(ENP2611, "Radisys ENP-2611 PCI network processor board")
         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = enp2611_map_io,
         .init_irq       = ixp2000_init_irq,
         .timer          = &enp2611_timer,
diff --git a/arch/arm/mach-ixp2000/ixdp2400.c b/arch/arm/mach-ixp2000/ixdp2400.c
index 5bad1a8419b7..f7dfd9700141 100644
--- a/arch/arm/mach-ixp2000/ixdp2400.c
+++ b/arch/arm/mach-ixp2000/ixdp2400.c
@@ -171,7 +171,7 @@ void __init ixdp2400_init_irq(void)
 
 MACHINE_START(IXDP2400, "Intel IXDP2400 Development Platform")
         /* Maintainer: MontaVista Software, Inc. */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = ixdp2x00_map_io,
         .init_irq       = ixdp2400_init_irq,
         .timer          = &ixdp2400_timer,
diff --git a/arch/arm/mach-ixp2000/ixdp2800.c b/arch/arm/mach-ixp2000/ixdp2800.c
index 3d3cef876467..d33bcac1ec92 100644
--- a/arch/arm/mach-ixp2000/ixdp2800.c
+++ b/arch/arm/mach-ixp2000/ixdp2800.c
@@ -286,7 +286,7 @@ void __init ixdp2800_init_irq(void)
 
 MACHINE_START(IXDP2800, "Intel IXDP2800 Development Platform")
         /* Maintainer: MontaVista Software, Inc. */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = ixdp2x00_map_io,
         .init_irq       = ixdp2800_init_irq,
         .timer          = &ixdp2800_timer,
diff --git a/arch/arm/mach-ixp2000/ixdp2x01.c b/arch/arm/mach-ixp2000/ixdp2x01.c
index be2a254f1374..61a28676b5be 100644
--- a/arch/arm/mach-ixp2000/ixdp2x01.c
+++ b/arch/arm/mach-ixp2000/ixdp2x01.c
@@ -417,7 +417,7 @@ static void __init ixdp2x01_init_machine(void)
 #ifdef CONFIG_ARCH_IXDP2401
 MACHINE_START(IXDP2401, "Intel IXDP2401 Development Platform")
         /* Maintainer: MontaVista Software, Inc. */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = ixdp2x01_map_io,
         .init_irq       = ixdp2x01_init_irq,
         .timer          = &ixdp2x01_timer,
@@ -428,7 +428,7 @@ MACHINE_END
 #ifdef CONFIG_ARCH_IXDP2801
 MACHINE_START(IXDP2801, "Intel IXDP2801 Development Platform")
         /* Maintainer: MontaVista Software, Inc. */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = ixdp2x01_map_io,
         .init_irq       = ixdp2x01_init_irq,
         .timer          = &ixdp2x01_timer,
@@ -441,7 +441,7 @@ MACHINE_END
  */
 MACHINE_START(IXDP28X5, "Intel IXDP2805/2855 Development Platform")
         /* Maintainer: MontaVista Software, Inc. */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = ixdp2x01_map_io,
         .init_irq       = ixdp2x01_init_irq,
         .timer          = &ixdp2x01_timer,
diff --git a/arch/arm/mach-ixp23xx/espresso.c b/arch/arm/mach-ixp23xx/espresso.c
index e25e5fe183ba..30dd31652e9d 100644
--- a/arch/arm/mach-ixp23xx/espresso.c
+++ b/arch/arm/mach-ixp23xx/espresso.c
@@ -88,6 +88,6 @@ MACHINE_START(ESPRESSO, "IP Fabrics Double Espresso")
         .map_io         = ixp23xx_map_io,
         .init_irq       = ixp23xx_init_irq,
         .timer          = &ixp23xx_timer,
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = espresso_init,
 MACHINE_END
diff --git a/arch/arm/mach-ixp23xx/ixdp2351.c b/arch/arm/mach-ixp23xx/ixdp2351.c
index ec028e35f401..b3a57e0f3419 100644
--- a/arch/arm/mach-ixp23xx/ixdp2351.c
+++ b/arch/arm/mach-ixp23xx/ixdp2351.c
@@ -331,6 +331,6 @@ MACHINE_START(IXDP2351, "Intel IXDP2351 Development Platform")
         .map_io         = ixdp2351_map_io,
         .init_irq       = ixdp2351_init_irq,
         .timer          = &ixp23xx_timer,
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = ixdp2351_init,
 MACHINE_END
diff --git a/arch/arm/mach-ixp23xx/roadrunner.c b/arch/arm/mach-ixp23xx/roadrunner.c
index 844551d2368b..8f4dcbba9025 100644
--- a/arch/arm/mach-ixp23xx/roadrunner.c
+++ b/arch/arm/mach-ixp23xx/roadrunner.c
@@ -175,6 +175,6 @@ MACHINE_START(ROADRUNNER, "ADI Engineering RoadRunner Development Platform")
         .map_io         = ixp23xx_map_io,
         .init_irq       = ixp23xx_init_irq,
         .timer          = &ixp23xx_timer,
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = roadrunner_init,
 MACHINE_END
diff --git a/arch/arm/mach-ixp4xx/avila-setup.c b/arch/arm/mach-ixp4xx/avila-setup.c
index ee19c1d383aa..37609a22c450 100644
--- a/arch/arm/mach-ixp4xx/avila-setup.c
+++ b/arch/arm/mach-ixp4xx/avila-setup.c
@@ -167,7 +167,7 @@ MACHINE_START(AVILA, "Gateworks Avila Network Platform")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = avila_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
@@ -185,7 +185,7 @@ MACHINE_START(LOFT, "Giant Shoulder Inc Loft board")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = avila_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
diff --git a/arch/arm/mach-ixp4xx/coyote-setup.c b/arch/arm/mach-ixp4xx/coyote-setup.c
index e24564b5d935..81dfec31842b 100644
--- a/arch/arm/mach-ixp4xx/coyote-setup.c
+++ b/arch/arm/mach-ixp4xx/coyote-setup.c
@@ -112,7 +112,7 @@ MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = coyote_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
@@ -130,7 +130,7 @@ MACHINE_START(IXDPG425, "Intel IXDPG425")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = coyote_init,
 MACHINE_END
 #endif
diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c
index 03e54515e8b3..71607a7ecc7e 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-setup.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c
@@ -279,7 +279,7 @@ static void __init dsmg600_init(void)
 
 MACHINE_START(DSMG600, "D-Link DSM-G600 RevA")
         /* Maintainer: www.nslu2-linux.org */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &dsmg600_timer,
diff --git a/arch/arm/mach-ixp4xx/fsg-setup.c b/arch/arm/mach-ixp4xx/fsg-setup.c
index 23a8b3614568..a9540cd90375 100644
--- a/arch/arm/mach-ixp4xx/fsg-setup.c
+++ b/arch/arm/mach-ixp4xx/fsg-setup.c
@@ -273,7 +273,7 @@ MACHINE_START(FSG, "Freecom FSG-3")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = fsg_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
diff --git a/arch/arm/mach-ixp4xx/gateway7001-setup.c b/arch/arm/mach-ixp4xx/gateway7001-setup.c
index d4f851bdd9a4..d69d1b053bb7 100644
--- a/arch/arm/mach-ixp4xx/gateway7001-setup.c
+++ b/arch/arm/mach-ixp4xx/gateway7001-setup.c
@@ -99,7 +99,7 @@ MACHINE_START(GATEWAY7001, "Gateway 7001 AP")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = gateway7001_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
diff --git a/arch/arm/mach-ixp4xx/goramo_mlr.c b/arch/arm/mach-ixp4xx/goramo_mlr.c
index 7548d9a2efe2..bf6678d1a929 100644
--- a/arch/arm/mach-ixp4xx/goramo_mlr.c
+++ b/arch/arm/mach-ixp4xx/goramo_mlr.c
@@ -499,7 +499,7 @@ MACHINE_START(GORAMO_MLR, "MultiLink")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = gmlr_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
diff --git a/arch/arm/mach-ixp4xx/gtwx5715-setup.c b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
index 3790dffd3c30..aa029fc19140 100644
--- a/arch/arm/mach-ixp4xx/gtwx5715-setup.c
+++ b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
@@ -167,7 +167,7 @@ MACHINE_START(GTWX5715, "Gemtek GTWX5715 (Linksys WRV54G)")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = gtwx5715_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index 6a2927956bf6..f235f829dfa6 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -256,7 +256,7 @@ MACHINE_START(IXDP425, "Intel IXDP425 Development Platform")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = ixdp425_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
@@ -270,7 +270,7 @@ MACHINE_START(IXDP465, "Intel IXDP465 Development Platform")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = ixdp425_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
@@ -284,7 +284,7 @@ MACHINE_START(IXCDP1100, "Intel IXCDP1100 Development Platform")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = ixdp425_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
@@ -298,7 +298,7 @@ MACHINE_START(KIXRP435, "Intel KIXRP435 Reference Platform")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = ixdp425_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index afb51879d9a4..9f4669260d4c 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -314,7 +314,7 @@ static void __init nas100d_init(void)
 
 MACHINE_START(NAS100D, "Iomega NAS 100d")
         /* Maintainer: www.nslu2-linux.org */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index 69e40f2cf092..3676fbf6ef9c 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -300,7 +300,7 @@ static void __init nslu2_init(void)
 
 MACHINE_START(NSLU2, "Linksys NSLU2")
         /* Maintainer: www.nslu2-linux.org */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &nslu2_timer,
diff --git a/arch/arm/mach-ixp4xx/vulcan-setup.c b/arch/arm/mach-ixp4xx/vulcan-setup.c
index 045336c833af..27e469ef4523 100644
--- a/arch/arm/mach-ixp4xx/vulcan-setup.c
+++ b/arch/arm/mach-ixp4xx/vulcan-setup.c
@@ -239,7 +239,7 @@ MACHINE_START(ARCOM_VULCAN, "Arcom/Eurotech Vulcan")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = vulcan_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
diff --git a/arch/arm/mach-ixp4xx/wg302v2-setup.c b/arch/arm/mach-ixp4xx/wg302v2-setup.c
index 40b9fad800b8..b14144b967a7 100644
--- a/arch/arm/mach-ixp4xx/wg302v2-setup.c
+++ b/arch/arm/mach-ixp4xx/wg302v2-setup.c
@@ -100,7 +100,7 @@ MACHINE_START(WG302V2, "Netgear WG302 v2 / WAG302 v2")
         .map_io         = ixp4xx_map_io,
         .init_irq       = ixp4xx_init_irq,
         .timer          = &ixp4xx_timer,
-        .boot_params    = 0x0100,
+        .atag_offset    = 0x100,
         .init_machine   = wg302v2_init,
 #if defined(CONFIG_PCI)
         .dma_zone_size  = SZ_64M,
diff --git a/arch/arm/mach-kirkwood/d2net_v2-setup.c b/arch/arm/mach-kirkwood/d2net_v2-setup.c
index 043cfd5e140b..f457e07a65f0 100644
--- a/arch/arm/mach-kirkwood/d2net_v2-setup.c
+++ b/arch/arm/mach-kirkwood/d2net_v2-setup.c
@@ -221,7 +221,7 @@ static void __init d2net_v2_init(void)
 }
 
 MACHINE_START(D2NET_V2, "LaCie d2 Network v2")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = d2net_v2_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/db88f6281-bp-setup.c b/arch/arm/mach-kirkwood/db88f6281-bp-setup.c
index bff04e04d679..ff4c21c1f923 100644
--- a/arch/arm/mach-kirkwood/db88f6281-bp-setup.c
+++ b/arch/arm/mach-kirkwood/db88f6281-bp-setup.c
@@ -97,7 +97,7 @@ subsys_initcall(db88f6281_pci_init);
 
 MACHINE_START(DB88F6281_BP, "Marvell DB-88F6281-BP Development Board")
         /* Maintainer: Saeed Bishara <saeed@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = db88f6281_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/dockstar-setup.c b/arch/arm/mach-kirkwood/dockstar-setup.c
index f14dfb8508c5..e4d199b2b1e8 100644
--- a/arch/arm/mach-kirkwood/dockstar-setup.c
+++ b/arch/arm/mach-kirkwood/dockstar-setup.c
@@ -102,7 +102,7 @@ static void __init dockstar_init(void)
 }
 
 MACHINE_START(DOCKSTAR, "Seagate FreeAgent DockStar")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = dockstar_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/guruplug-setup.c b/arch/arm/mach-kirkwood/guruplug-setup.c
index 41d1b40696a3..6c40f784b516 100644
--- a/arch/arm/mach-kirkwood/guruplug-setup.c
+++ b/arch/arm/mach-kirkwood/guruplug-setup.c
@@ -121,7 +121,7 @@ static void __init guruplug_init(void)
 
 MACHINE_START(GURUPLUG, "Marvell GuruPlug Reference Board")
         /* Maintainer: Siddarth Gore <gores@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = guruplug_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/mv88f6281gtw_ge-setup.c b/arch/arm/mach-kirkwood/mv88f6281gtw_ge-setup.c
index 00cca22eca6f..9a1e917352f7 100644
--- a/arch/arm/mach-kirkwood/mv88f6281gtw_ge-setup.c
+++ b/arch/arm/mach-kirkwood/mv88f6281gtw_ge-setup.c
@@ -163,7 +163,7 @@ subsys_initcall(mv88f6281gtw_ge_pci_init);
 
 MACHINE_START(MV88F6281GTW_GE, "Marvell 88F6281 GTW GE Board")
         /* Maintainer: Lennert Buytenhek <buytenh@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = mv88f6281gtw_ge_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/netspace_v2-setup.c b/arch/arm/mach-kirkwood/netspace_v2-setup.c
index 7cdab5776452..8849bcc7328e 100644
--- a/arch/arm/mach-kirkwood/netspace_v2-setup.c
+++ b/arch/arm/mach-kirkwood/netspace_v2-setup.c
@@ -258,7 +258,7 @@ static void __init netspace_v2_init(void)
 
 #ifdef CONFIG_MACH_NETSPACE_V2
 MACHINE_START(NETSPACE_V2, "LaCie Network Space v2")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = netspace_v2_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
@@ -269,7 +269,7 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_INETSPACE_V2
 MACHINE_START(INETSPACE_V2, "LaCie Internet Space v2")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = netspace_v2_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
@@ -280,7 +280,7 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_NETSPACE_MAX_V2
 MACHINE_START(NETSPACE_MAX_V2, "LaCie Network Space Max v2")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = netspace_v2_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/netxbig_v2-setup.c b/arch/arm/mach-kirkwood/netxbig_v2-setup.c
index 6be627deb0fc..1ba12c4dff8f 100644
--- a/arch/arm/mach-kirkwood/netxbig_v2-setup.c
+++ b/arch/arm/mach-kirkwood/netxbig_v2-setup.c
@@ -399,7 +399,7 @@ static void __init netxbig_v2_init(void)
 
 #ifdef CONFIG_MACH_NET2BIG_V2
 MACHINE_START(NET2BIG_V2, "LaCie 2Big Network v2")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = netxbig_v2_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
@@ -410,7 +410,7 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_NET5BIG_V2
 MACHINE_START(NET5BIG_V2, "LaCie 5Big Network v2")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = netxbig_v2_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/openrd-setup.c b/arch/arm/mach-kirkwood/openrd-setup.c
index f69beeff4450..5660ca6c3d88 100644
--- a/arch/arm/mach-kirkwood/openrd-setup.c
+++ b/arch/arm/mach-kirkwood/openrd-setup.c
@@ -214,7 +214,7 @@ subsys_initcall(openrd_pci_init);
 #ifdef CONFIG_MACH_OPENRD_BASE
 MACHINE_START(OPENRD_BASE, "Marvell OpenRD Base Board")
         /* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = openrd_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
@@ -226,7 +226,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_OPENRD_CLIENT
 MACHINE_START(OPENRD_CLIENT, "Marvell OpenRD Client Board")
         /* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = openrd_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
@@ -238,7 +238,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_OPENRD_ULTIMATE
 MACHINE_START(OPENRD_ULTIMATE, "Marvell OpenRD Ultimate Board")
         /* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = openrd_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/rd88f6192-nas-setup.c b/arch/arm/mach-kirkwood/rd88f6192-nas-setup.c
index 75c6601b8d87..6663869773ab 100644
--- a/arch/arm/mach-kirkwood/rd88f6192-nas-setup.c
+++ b/arch/arm/mach-kirkwood/rd88f6192-nas-setup.c
@@ -79,7 +79,7 @@ subsys_initcall(rd88f6192_pci_init);
 
 MACHINE_START(RD88F6192_NAS, "Marvell RD-88F6192-NAS Development Board")
         /* Maintainer: Saeed Bishara <saeed@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = rd88f6192_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/rd88f6281-setup.c b/arch/arm/mach-kirkwood/rd88f6281-setup.c
index 0f75494d5902..66b3c05e37a6 100644
--- a/arch/arm/mach-kirkwood/rd88f6281-setup.c
+++ b/arch/arm/mach-kirkwood/rd88f6281-setup.c
@@ -115,7 +115,7 @@ subsys_initcall(rd88f6281_pci_init);
 
 MACHINE_START(RD88F6281, "Marvell RD-88F6281 Reference Board")
         /* Maintainer: Saeed Bishara <saeed@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = rd88f6281_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/sheevaplug-setup.c b/arch/arm/mach-kirkwood/sheevaplug-setup.c
index 17de0bf53c08..8b102d62e82c 100644
--- a/arch/arm/mach-kirkwood/sheevaplug-setup.c
+++ b/arch/arm/mach-kirkwood/sheevaplug-setup.c
@@ -138,7 +138,7 @@ static void __init sheevaplug_init(void)
 #ifdef CONFIG_MACH_SHEEVAPLUG
 MACHINE_START(SHEEVAPLUG, "Marvell SheevaPlug Reference Board")
         /* Maintainer: shadi Ammouri <shadi@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = sheevaplug_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
@@ -149,7 +149,7 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_ESATA_SHEEVAPLUG
 MACHINE_START(ESATA_SHEEVAPLUG, "Marvell eSATA SheevaPlug Reference Board")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = sheevaplug_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/t5325-setup.c b/arch/arm/mach-kirkwood/t5325-setup.c
index e6b9b1b22a35..ea104fb5ec3d 100644
--- a/arch/arm/mach-kirkwood/t5325-setup.c
+++ b/arch/arm/mach-kirkwood/t5325-setup.c
@@ -201,7 +201,7 @@ subsys_initcall(hp_t5325_pci_init);
 
 MACHINE_START(T5325, "HP t5325 Thin Client")
         /* Maintainer: Martin Michlmayr <tbm@cyrius.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = hp_t5325_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/ts219-setup.c b/arch/arm/mach-kirkwood/ts219-setup.c
index 68f32f2bf552..262c034836d4 100644
--- a/arch/arm/mach-kirkwood/ts219-setup.c
+++ b/arch/arm/mach-kirkwood/ts219-setup.c
@@ -132,7 +132,7 @@ subsys_initcall(ts219_pci_init);
 
 MACHINE_START(TS219, "QNAP TS-119/TS-219")
         /* Maintainer: Martin Michlmayr <tbm@cyrius.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = qnap_ts219_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-kirkwood/ts41x-setup.c b/arch/arm/mach-kirkwood/ts41x-setup.c
index d5d009970705..b68f5b4a9ec8 100644
--- a/arch/arm/mach-kirkwood/ts41x-setup.c
+++ b/arch/arm/mach-kirkwood/ts41x-setup.c
@@ -176,7 +176,7 @@ subsys_initcall(ts41x_pci_init);
 
 MACHINE_START(TS41X, "QNAP TS-41x")
         /* Maintainer: Martin Michlmayr <tbm@cyrius.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = qnap_ts41x_init,
         .map_io         = kirkwood_map_io,
         .init_early     = kirkwood_init_early,
diff --git a/arch/arm/mach-ks8695/board-acs5k.c b/arch/arm/mach-ks8695/board-acs5k.c
index 3ca4f8e6f54f..a5fcc7c7fe18 100644
--- a/arch/arm/mach-ks8695/board-acs5k.c
+++ b/arch/arm/mach-ks8695/board-acs5k.c
@@ -223,7 +223,7 @@ static void __init acs5k_init(void)
 
 MACHINE_START(ACS5K, "Brivo Systems LLC ACS-5000 Master board")
         /* Maintainer: Simtec Electronics. */
-        .boot_params    = KS8695_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ks8695_map_io,
         .init_irq       = ks8695_init_irq,
         .init_machine   = acs5k_init,
diff --git a/arch/arm/mach-ks8695/board-dsm320.c b/arch/arm/mach-ks8695/board-dsm320.c
index 1338cb3e9827..fb91a716a7db 100644
--- a/arch/arm/mach-ks8695/board-dsm320.c
+++ b/arch/arm/mach-ks8695/board-dsm320.c
@@ -121,7 +121,7 @@ static void __init dsm320_init(void)
 
 MACHINE_START(DSM320, "D-Link DSM-320 Wireless Media Player")
         /* Maintainer: Simtec Electronics. */
-        .boot_params    = KS8695_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ks8695_map_io,
         .init_irq       = ks8695_init_irq,
         .init_machine   = dsm320_init,
diff --git a/arch/arm/mach-ks8695/board-micrel.c b/arch/arm/mach-ks8695/board-micrel.c
index e2e3cba8dcdb..8f67a750b6c7 100644
--- a/arch/arm/mach-ks8695/board-micrel.c
+++ b/arch/arm/mach-ks8695/board-micrel.c
@@ -53,7 +53,7 @@ static void __init micrel_init(void)
 
 MACHINE_START(KS8695, "KS8695 Centaur Development Board")
         /* Maintainer: Micrel Semiconductor Inc. */
-        .boot_params    = KS8695_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = ks8695_map_io,
         .init_irq       = ks8695_init_irq,
         .init_machine   = micrel_init,
diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c
index 7993b096778e..9b621e14d16a 100644
--- a/arch/arm/mach-lpc32xx/phy3250.c
+++ b/arch/arm/mach-lpc32xx/phy3250.c
@@ -382,7 +382,7 @@ arch_initcall(lpc32xx_display_uid);
 
 MACHINE_START(PHY3250, "Phytec 3250 board with the LPC3250 Microcontroller")
         /* Maintainer: Kevin Wells, NXP Semiconductors */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .map_io         = lpc32xx_map_io,
         .init_irq       = lpc32xx_init_irq,
         .timer          = &lpc32xx_timer,
diff --git a/arch/arm/mach-msm/board-halibut.c b/arch/arm/mach-msm/board-halibut.c
index 18a3c97bc863..16c86f8b4f3f 100644
--- a/arch/arm/mach-msm/board-halibut.c
+++ b/arch/arm/mach-msm/board-halibut.c
@@ -93,7 +93,7 @@ static void __init halibut_map_io(void)
 }
 
 MACHINE_START(HALIBUT, "Halibut Board (QCT SURF7200A)")
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .fixup          = halibut_fixup,
         .map_io         = halibut_map_io,
         .init_irq       = halibut_init_irq,
diff --git a/arch/arm/mach-msm/board-mahimahi.c b/arch/arm/mach-msm/board-mahimahi.c
index 7a9a03eb189c..8a1672ee4e4a 100644
--- a/arch/arm/mach-msm/board-mahimahi.c
+++ b/arch/arm/mach-msm/board-mahimahi.c
@@ -74,7 +74,7 @@ static void __init mahimahi_map_io(void)
 extern struct sys_timer msm_timer;
 
 MACHINE_START(MAHIMAHI, "mahimahi")
-        .boot_params    = 0x20000100,
+        .atag_offset    = 0x100,
         .fixup          = mahimahi_fixup,
         .map_io         = mahimahi_map_io,
         .init_irq       = msm_init_irq,
diff --git a/arch/arm/mach-msm/board-msm7x27.c b/arch/arm/mach-msm/board-msm7x27.c
index c03f269e2e4b..a80765533f13 100644
--- a/arch/arm/mach-msm/board-msm7x27.c
+++ b/arch/arm/mach-msm/board-msm7x27.c
@@ -130,7 +130,7 @@ static void __init msm7x2x_map_io(void)
 }
 
 MACHINE_START(MSM7X27_SURF, "QCT MSM7x27 SURF")
-        .boot_params    = PLAT_PHYS_OFFSET + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = msm7x2x_map_io,
         .init_irq       = msm7x2x_init_irq,
         .init_machine   = msm7x2x_init,
@@ -138,7 +138,7 @@ MACHINE_START(MSM7X27_SURF, "QCT MSM7x27 SURF")
 MACHINE_END
 
 MACHINE_START(MSM7X27_FFA, "QCT MSM7x27 FFA")
-        .boot_params    = PLAT_PHYS_OFFSET + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = msm7x2x_map_io,
         .init_irq       = msm7x2x_init_irq,
         .init_machine   = msm7x2x_init,
@@ -146,7 +146,7 @@ MACHINE_START(MSM7X27_FFA, "QCT MSM7x27 FFA")
 MACHINE_END
 
 MACHINE_START(MSM7X25_SURF, "QCT MSM7x25 SURF")
-        .boot_params    = PLAT_PHYS_OFFSET + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = msm7x2x_map_io,
         .init_irq       = msm7x2x_init_irq,
         .init_machine   = msm7x2x_init,
@@ -154,7 +154,7 @@ MACHINE_START(MSM7X25_SURF, "QCT MSM7x25 SURF")
 MACHINE_END
 
 MACHINE_START(MSM7X25_FFA, "QCT MSM7x25 FFA")
-        .boot_params    = PLAT_PHYS_OFFSET + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = msm7x2x_map_io,
         .init_irq       = msm7x2x_init_irq,
         .init_machine   = msm7x2x_init,
diff --git a/arch/arm/mach-msm/board-msm7x30.c b/arch/arm/mach-msm/board-msm7x30.c
index b7a84966b711..5a2ab6855183 100644
--- a/arch/arm/mach-msm/board-msm7x30.c
+++ b/arch/arm/mach-msm/board-msm7x30.c
@@ -106,7 +106,7 @@ static void __init msm7x30_map_io(void)
 }
 
 MACHINE_START(MSM7X30_SURF, "QCT MSM7X30 SURF")
-        .boot_params = PLAT_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = msm7x30_map_io,
         .init_irq = msm7x30_init_irq,
         .init_machine = msm7x30_init,
@@ -114,7 +114,7 @@ MACHINE_START(MSM7X30_SURF, "QCT MSM7X30 SURF")
 MACHINE_END
 
 MACHINE_START(MSM7X30_FFA, "QCT MSM7X30 FFA")
-        .boot_params = PLAT_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = msm7x30_map_io,
         .init_irq = msm7x30_init_irq,
         .init_machine = msm7x30_init,
@@ -122,7 +122,7 @@ MACHINE_START(MSM7X30_FFA, "QCT MSM7X30 FFA")
 MACHINE_END
 
 MACHINE_START(MSM7X30_FLUID, "QCT MSM7X30 FLUID")
-        .boot_params = PLAT_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = msm7x30_map_io,
         .init_irq = msm7x30_init_irq,
         .init_machine = msm7x30_init,
diff --git a/arch/arm/mach-msm/board-qsd8x50.c b/arch/arm/mach-msm/board-qsd8x50.c
index 6a96911b0ad5..51109b1f4342 100644
--- a/arch/arm/mach-msm/board-qsd8x50.c
+++ b/arch/arm/mach-msm/board-qsd8x50.c
@@ -193,7 +193,7 @@ static void __init qsd8x50_init(void)
 }
 
 MACHINE_START(QSD8X50_SURF, "QCT QSD8X50 SURF")
-        .boot_params = PLAT_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = qsd8x50_map_io,
         .init_irq = qsd8x50_init_irq,
         .init_machine = qsd8x50_init,
@@ -201,7 +201,7 @@ MACHINE_START(QSD8X50_SURF, "QCT QSD8X50 SURF")
 MACHINE_END
 
 MACHINE_START(QSD8X50A_ST1_5, "QCT QSD8X50A ST1.5")
-        .boot_params = PLAT_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = qsd8x50_map_io,
         .init_irq = qsd8x50_init_irq,
         .init_machine = qsd8x50_init,
diff --git a/arch/arm/mach-msm/board-sapphire.c b/arch/arm/mach-msm/board-sapphire.c
index 68f930f07d77..dc0bcb5a6b9a 100644
--- a/arch/arm/mach-msm/board-sapphire.c
+++ b/arch/arm/mach-msm/board-sapphire.c
@@ -105,7 +105,7 @@ static void __init sapphire_map_io(void)
 
 MACHINE_START(SAPPHIRE, "sapphire")
 /* Maintainer: Brian Swetland <swetland@google.com> */
-        .boot_params    = PLAT_PHYS_OFFSET + 0x100,
+        .atag_offset    = 0x100,
         .fixup          = sapphire_fixup,
         .map_io         = sapphire_map_io,
         .init_irq       = sapphire_init_irq,
diff --git a/arch/arm/mach-msm/board-trout.c b/arch/arm/mach-msm/board-trout.c
index 814386772c66..22d5694f5fea 100644
--- a/arch/arm/mach-msm/board-trout.c
+++ b/arch/arm/mach-msm/board-trout.c
@@ -93,7 +93,7 @@ static void __init trout_map_io(void)
 }
 
 MACHINE_START(TROUT, "HTC Dream")
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .fixup          = trout_fixup,
         .map_io         = trout_map_io,
         .init_irq       = trout_init_irq,
diff --git a/arch/arm/mach-mv78xx0/buffalo-wxl-setup.c b/arch/arm/mach-mv78xx0/buffalo-wxl-setup.c
index 20f3f125ed2b..0e94268d6e6f 100644
--- a/arch/arm/mach-mv78xx0/buffalo-wxl-setup.c
+++ b/arch/arm/mach-mv78xx0/buffalo-wxl-setup.c
@@ -145,7 +145,7 @@ subsys_initcall(wxl_pci_init);
 
 MACHINE_START(TERASTATION_WXL, "Buffalo Nas WXL")
         /* Maintainer: Sebastien Requiem <sebastien@requiem.fr> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = wxl_init,
         .map_io         = mv78xx0_map_io,
         .init_early     = mv78xx0_init_early,
diff --git a/arch/arm/mach-mv78xx0/db78x00-bp-setup.c b/arch/arm/mach-mv78xx0/db78x00-bp-setup.c
index df5aebe5b0fa..50b85ae2da52 100644
--- a/arch/arm/mach-mv78xx0/db78x00-bp-setup.c
+++ b/arch/arm/mach-mv78xx0/db78x00-bp-setup.c
@@ -93,7 +93,7 @@ subsys_initcall(db78x00_pci_init);
 
 MACHINE_START(DB78X00_BP, "Marvell DB-78x00-BP Development Board")
         /* Maintainer: Lennert Buytenhek <buytenh@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = db78x00_init,
         .map_io         = mv78xx0_map_io,
         .init_early     = mv78xx0_init_early,
diff --git a/arch/arm/mach-mv78xx0/rd78x00-masa-setup.c b/arch/arm/mach-mv78xx0/rd78x00-masa-setup.c
index d927f14c6810..e85222e53578 100644
--- a/arch/arm/mach-mv78xx0/rd78x00-masa-setup.c
+++ b/arch/arm/mach-mv78xx0/rd78x00-masa-setup.c
@@ -78,7 +78,7 @@ subsys_initcall(rd78x00_pci_init);
 
 MACHINE_START(RD78X00_MASA, "Marvell RD-78x00-MASA Development Board")
         /* Maintainer: Lennert Buytenhek <buytenh@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = rd78x00_masa_init,
         .map_io         = mv78xx0_map_io,
         .init_early     = mv78xx0_init_early,
diff --git a/arch/arm/mach-mx5/board-cpuimx51.c b/arch/arm/mach-mx5/board-cpuimx51.c
index 68934ea8725a..e01af948e043 100644
--- a/arch/arm/mach-mx5/board-cpuimx51.c
+++ b/arch/arm/mach-mx5/board-cpuimx51.c
@@ -293,7 +293,7 @@ static struct sys_timer mxc_timer = {
 
 MACHINE_START(EUKREA_CPUIMX51, "Eukrea CPUIMX51 Module")
         /* Maintainer: Eric Bénard <eric@eukrea.com> */
-        .boot_params = MX51_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx51_map_io,
         .init_early = imx51_init_early,
         .init_irq = mx51_init_irq,
diff --git a/arch/arm/mach-mx5/board-cpuimx51sd.c b/arch/arm/mach-mx5/board-cpuimx51sd.c
index ff096d587299..b41fc274a425 100644
--- a/arch/arm/mach-mx5/board-cpuimx51sd.c
+++ b/arch/arm/mach-mx5/board-cpuimx51sd.c
@@ -331,7 +331,7 @@ static struct sys_timer mxc_timer = {
 
 MACHINE_START(EUKREA_CPUIMX51SD, "Eukrea CPUIMX51SD")
         /* Maintainer: Eric Bénard <eric@eukrea.com> */
-        .boot_params = MX51_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx51_map_io,
         .init_early = imx51_init_early,
         .init_irq = mx51_init_irq,
diff --git a/arch/arm/mach-mx5/board-mx51_3ds.c b/arch/arm/mach-mx5/board-mx51_3ds.c
index 07a38154da21..a50174e69e2f 100644
--- a/arch/arm/mach-mx5/board-mx51_3ds.c
+++ b/arch/arm/mach-mx5/board-mx51_3ds.c
@@ -169,7 +169,7 @@ static struct sys_timer mx51_3ds_timer = {
 
 MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board")
         /* Maintainer: Freescale Semiconductor, Inc. */
-        .boot_params = MX51_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx51_map_io,
         .init_early = imx51_init_early,
         .init_irq = mx51_init_irq,
diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c
index 11b0ff67f89d..468926a48fe0 100644
--- a/arch/arm/mach-mx5/board-mx51_babbage.c
+++ b/arch/arm/mach-mx5/board-mx51_babbage.c
@@ -416,7 +416,7 @@ static struct sys_timer mx51_babbage_timer = {
 
 MACHINE_START(MX51_BABBAGE, "Freescale MX51 Babbage Board")
         /* Maintainer: Amit Kucheria <amit.kucheria@canonical.com> */
-        .boot_params = MX51_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx51_map_io,
         .init_early = imx51_init_early,
         .init_irq = mx51_init_irq,
diff --git a/arch/arm/mach-mx5/board-mx51_efikamx.c b/arch/arm/mach-mx5/board-mx51_efikamx.c
index 551daf85ff8c..c36880da03f0 100644
--- a/arch/arm/mach-mx5/board-mx51_efikamx.c
+++ b/arch/arm/mach-mx5/board-mx51_efikamx.c
@@ -280,7 +280,7 @@ static struct sys_timer mx51_efikamx_timer = {
 
 MACHINE_START(MX51_EFIKAMX, "Genesi EfikaMX nettop")
         /* Maintainer: Amit Kucheria <amit.kucheria@linaro.org> */
-        .boot_params = MX51_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx51_map_io,
         .init_early = imx51_init_early,
         .init_irq = mx51_init_irq,
diff --git a/arch/arm/mach-mx5/board-mx51_efikasb.c b/arch/arm/mach-mx5/board-mx51_efikasb.c
index 8a9bca22beb5..ba5436a9fb1a 100644
--- a/arch/arm/mach-mx5/board-mx51_efikasb.c
+++ b/arch/arm/mach-mx5/board-mx51_efikasb.c
@@ -266,7 +266,7 @@ static struct sys_timer mx51_efikasb_timer = {
 };
 
 MACHINE_START(MX51_EFIKASB, "Genesi Efika Smartbook")
-        .boot_params = MX51_PHYS_OFFSET + 0x100,
+        .atag_offset = 0x100,
         .map_io = mx51_map_io,
         .init_early = imx51_init_early,
         .init_irq = mx51_init_irq,
diff --git a/arch/arm/mach-netx/nxdb500.c b/arch/arm/mach-netx/nxdb500.c
index ca8b203a3c99..90903dd44cbc 100644
--- a/arch/arm/mach-netx/nxdb500.c
+++ b/arch/arm/mach-netx/nxdb500.c
@@ -200,7 +200,7 @@ static void __init nxdb500_init(void)
 }
 
 MACHINE_START(NXDB500, "Hilscher nxdb500")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .map_io         = netx_map_io,
         .init_irq       = netx_init_irq,
         .timer          = &netx_timer,
diff --git a/arch/arm/mach-netx/nxdkn.c b/arch/arm/mach-netx/nxdkn.c
index d775cbe07278..c63384aba500 100644
--- a/arch/arm/mach-netx/nxdkn.c
+++ b/arch/arm/mach-netx/nxdkn.c
@@ -93,7 +93,7 @@ static void __init nxdkn_init(void)
 }
 
 MACHINE_START(NXDKN, "Hilscher nxdkn")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .map_io         = netx_map_io,
         .init_irq       = netx_init_irq,
         .timer          = &netx_timer,
diff --git a/arch/arm/mach-netx/nxeb500hmi.c b/arch/arm/mach-netx/nxeb500hmi.c
index de369cd1dcbe..8f548ec83ad2 100644
--- a/arch/arm/mach-netx/nxeb500hmi.c
+++ b/arch/arm/mach-netx/nxeb500hmi.c
@@ -177,7 +177,7 @@ static void __init nxeb500hmi_init(void)
 }
 
 MACHINE_START(NXEB500HMI, "Hilscher nxeb500hmi")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .map_io         = netx_map_io,
         .init_irq       = netx_init_irq,
         .timer          = &netx_timer,
diff --git a/arch/arm/mach-nomadik/board-nhk8815.c b/arch/arm/mach-nomadik/board-nhk8815.c
index 139930350d93..398a75f62bee 100644
--- a/arch/arm/mach-nomadik/board-nhk8815.c
+++ b/arch/arm/mach-nomadik/board-nhk8815.c
@@ -276,7 +276,7 @@ static void __init nhk8815_platform_init(void)
 
 MACHINE_START(NOMADIK, "NHK8815")
         /* Maintainer: ST MicroElectronics */
-        .boot_params    = 0x100,
+        .atag_offset    = 0x100,
         .map_io         = cpu8815_map_io,
         .init_irq       = cpu8815_init_irq,
         .timer          = &nomadik_timer,
diff --git a/arch/arm/mach-nuc93x/mach-nuc932evb.c b/arch/arm/mach-nuc93x/mach-nuc932evb.c
index d70257042480..1f741b1c1604 100644
--- a/arch/arm/mach-nuc93x/mach-nuc932evb.c
+++ b/arch/arm/mach-nuc93x/mach-nuc932evb.c
@@ -35,7 +35,6 @@ static void __init nuc932evb_init(void)
 
 MACHINE_START(NUC932EVB, "NUC932EVB")
         /* Maintainer: Wan ZongShun */
-        .boot_params    = 0,
         .map_io         = nuc932evb_map_io,
         .init_irq       = nuc93x_init_irq,
         .init_machine   = nuc932evb_init,
diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c
index 312ea6b0409d..eb36b25450a0 100644
--- a/arch/arm/mach-omap1/board-ams-delta.c
+++ b/arch/arm/mach-omap1/board-ams-delta.c
@@ -386,7 +386,7 @@ static void __init ams_delta_map_io(void)
 
 MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
         /* Maintainer: Jonathan McDowell <noodles@earth.li> */
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = ams_delta_map_io,
         .reserve        = omap_reserve,
         .init_irq       = ams_delta_init_irq,
diff --git a/arch/arm/mach-omap1/board-fsample.c b/arch/arm/mach-omap1/board-fsample.c
index a6b1bea50371..999789c4811d 100644
--- a/arch/arm/mach-omap1/board-fsample.c
+++ b/arch/arm/mach-omap1/board-fsample.c
@@ -389,7 +389,7 @@ static void __init omap_fsample_map_io(void)
 
 MACHINE_START(OMAP_FSAMPLE, "OMAP730 F-Sample")
 /* Maintainer: Brian Swetland <swetland@google.com> */
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = omap_fsample_map_io,
         .reserve        = omap_reserve,
         .init_irq       = omap_fsample_init_irq,
diff --git a/arch/arm/mach-omap1/board-generic.c b/arch/arm/mach-omap1/board-generic.c
index 04fc356c40fa..23cc9e4ad50d 100644
--- a/arch/arm/mach-omap1/board-generic.c
+++ b/arch/arm/mach-omap1/board-generic.c
@@ -94,7 +94,7 @@ static void __init omap_generic_map_io(void)
 
 MACHINE_START(OMAP_GENERIC, "Generic OMAP1510/1610/1710")
         /* Maintainer: Tony Lindgren <tony@atomide.com> */
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = omap_generic_map_io,
         .reserve        = omap_reserve,
         .init_irq       = omap_generic_init_irq,
diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index cb7fb1aa3dca..6c70c28d055c 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -461,7 +461,7 @@ static void __init h2_map_io(void)
 
 MACHINE_START(OMAP_H2, "TI-H2")
         /* Maintainer: Imre Deak <imre.deak@nokia.com> */
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = h2_map_io,
         .reserve        = omap_reserve,
         .init_irq       = h2_init_irq,
diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c
index 31f34875ffad..8e2b64a46929 100644
--- a/arch/arm/mach-omap1/board-h3.c
+++ b/arch/arm/mach-omap1/board-h3.c
@@ -449,7 +449,7 @@ static void __init h3_map_io(void)
 
 MACHINE_START(OMAP_H3, "TI OMAP1710 H3 board")
         /* Maintainer: Texas Instruments, Inc. */
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = h3_map_io,
         .reserve        = omap_reserve,
         .init_irq       = h3_init_irq,
diff --git a/arch/arm/mach-omap1/board-htcherald.c b/arch/arm/mach-omap1/board-htcherald.c
index 36e06ea7ec65..e81ead1c89ea 100644
--- a/arch/arm/mach-omap1/board-htcherald.c
+++ b/arch/arm/mach-omap1/board-htcherald.c
@@ -611,7 +611,7 @@ static void __init htcherald_init_irq(void)
 MACHINE_START(HERALD, "HTC Herald")
         /* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */
         /* Maintainer: wing-linux.sourceforge.net */
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = htcherald_map_io,
         .reserve        = omap_reserve,
         .init_irq       = htcherald_init_irq,
diff --git a/arch/arm/mach-omap1/board-innovator.c b/arch/arm/mach-omap1/board-innovator.c
index 0b1ba462d388..8b034594fbc7 100644
--- a/arch/arm/mach-omap1/board-innovator.c
+++ b/arch/arm/mach-omap1/board-innovator.c
@@ -459,7 +459,7 @@ static void __init innovator_map_io(void)
 
 MACHINE_START(OMAP_INNOVATOR, "TI-Innovator")
         /* Maintainer: MontaVista Software, Inc. */
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = innovator_map_io,
         .reserve        = omap_reserve,
         .init_irq       = innovator_init_irq,
diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c
index 5469ce247ffe..6825635ac681 100644
--- a/arch/arm/mach-omap1/board-nokia770.c
+++ b/arch/arm/mach-omap1/board-nokia770.c
@@ -264,7 +264,7 @@ static void __init omap_nokia770_map_io(void)
 }
 
 MACHINE_START(NOKIA770, "Nokia 770")
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = omap_nokia770_map_io,
         .reserve        = omap_reserve,
         .init_irq       = omap_nokia770_init_irq,
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index b08a21380772..44b8e9362bf4 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -583,7 +583,7 @@ static void __init osk_map_io(void)
 
 MACHINE_START(OMAP_OSK, "TI-OSK")
         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = osk_map_io,
         .reserve        = omap_reserve,
         .init_irq       = osk_init_irq,
diff --git a/arch/arm/mach-omap1/board-palmte.c b/arch/arm/mach-omap1/board-palmte.c
index 459cb6bfed55..3d8cd90b1dbb 100644
--- a/arch/arm/mach-omap1/board-palmte.c
+++ b/arch/arm/mach-omap1/board-palmte.c
@@ -275,7 +275,7 @@ static void __init omap_palmte_map_io(void)
 }
 
 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = omap_palmte_map_io,
         .reserve        = omap_reserve,
         .init_irq       = omap_palmte_init_irq,
diff --git a/arch/arm/mach-omap1/board-palmtt.c b/arch/arm/mach-omap1/board-palmtt.c
index b214f45f646c..d0eefe81cd1b 100644
--- a/arch/arm/mach-omap1/board-palmtt.c
+++ b/arch/arm/mach-omap1/board-palmtt.c
@@ -321,7 +321,7 @@ static void __init omap_palmtt_map_io(void)
 }
 
 MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = omap_palmtt_map_io,
         .reserve        = omap_reserve,
         .init_irq       = omap_palmtt_init_irq,
diff --git a/arch/arm/mach-omap1/board-palmz71.c b/arch/arm/mach-omap1/board-palmz71.c
index 9b0ea48d35fd..98e79bc09213 100644
--- a/arch/arm/mach-omap1/board-palmz71.c
+++ b/arch/arm/mach-omap1/board-palmz71.c
@@ -341,7 +341,7 @@ omap_palmz71_map_io(void)
 }
 
 MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = omap_palmz71_map_io,
         .reserve        = omap_reserve,
         .init_irq       = omap_palmz71_init_irq,
diff --git a/arch/arm/mach-omap1/board-perseus2.c b/arch/arm/mach-omap1/board-perseus2.c
index 67acd4142639..ad3a1567604e 100644
--- a/arch/arm/mach-omap1/board-perseus2.c
+++ b/arch/arm/mach-omap1/board-perseus2.c
@@ -350,7 +350,7 @@ static void __init omap_perseus2_map_io(void)
 
 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = omap_perseus2_map_io,
         .reserve        = omap_reserve,
         .init_irq       = omap_perseus2_init_irq,
diff --git a/arch/arm/mach-omap1/board-sx1.c b/arch/arm/mach-omap1/board-sx1.c
index 9c3b7c52d9cf..602b55c39d3d 100644
--- a/arch/arm/mach-omap1/board-sx1.c
+++ b/arch/arm/mach-omap1/board-sx1.c
@@ -421,7 +421,7 @@ static void __init omap_sx1_map_io(void)
 }
 
 MACHINE_START(SX1, "OMAP310 based Siemens SX1")
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = omap_sx1_map_io,
         .reserve        = omap_reserve,
         .init_irq       = omap_sx1_init_irq,
diff --git a/arch/arm/mach-omap1/board-voiceblue.c b/arch/arm/mach-omap1/board-voiceblue.c
index 036edc0ee9b6..80165154617a 100644
--- a/arch/arm/mach-omap1/board-voiceblue.c
+++ b/arch/arm/mach-omap1/board-voiceblue.c
@@ -301,7 +301,7 @@ static void __init voiceblue_init(void)
 
 MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
         /* Maintainer: Ladislav Michl <michl@2n.cz> */
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .map_io         = voiceblue_map_io,
         .reserve        = omap_reserve,
         .init_irq       = voiceblue_init_irq,
diff --git a/arch/arm/mach-omap1/io.c b/arch/arm/mach-omap1/io.c
index 870886a29594..1cfa1b6bb62b 100644
--- a/arch/arm/mach-omap1/io.c
+++ b/arch/arm/mach-omap1/io.c
@@ -121,6 +121,7 @@ void __init omap1_map_common_io(void)
 #endif
 
         omap_sram_init();
+        omap_init_consistent_dma_size();
 }
 
 /*
diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index 2028464cf5b9..195157da21e6 100644
--- a/arch/arm/mach-omap2/board-2430sdp.c
+++ b/arch/arm/mach-omap2/board-2430sdp.c
@@ -256,7 +256,7 @@ static void __init omap_2430sdp_map_io(void)
 
 MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
         /* Maintainer: Syed Khasim - Texas Instruments Inc */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap_2430sdp_map_io,
         .init_early     = omap_2430sdp_init_early,
diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index bd600cfb7f80..2430531b2239 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -729,7 +729,7 @@ static void __init omap_3430sdp_init(void)
 
 MACHINE_START(OMAP_3430SDP, "OMAP3430 3430SDP board")
         /* Maintainer: Syed Khasim - Texas Instruments Inc */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = omap_3430sdp_init_early,
diff --git a/arch/arm/mach-omap2/board-3630sdp.c b/arch/arm/mach-omap2/board-3630sdp.c
index e4f37b57a0c4..8b5b5aa751ed 100644
--- a/arch/arm/mach-omap2/board-3630sdp.c
+++ b/arch/arm/mach-omap2/board-3630sdp.c
@@ -215,7 +215,7 @@ static void __init omap_sdp_init(void)
 }
 
 MACHINE_START(OMAP_3630SDP, "OMAP 3630SDP board")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = omap_sdp_init_early,
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index c7cef44c75d4..be931105d681 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -838,7 +838,7 @@ static void __init omap_4430sdp_map_io(void)
 
 MACHINE_START(OMAP_4430SDP, "OMAP4430 4430SDP board")
         /* Maintainer: Santosh Shilimkar - Texas Instruments Inc */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap_4430sdp_map_io,
         .init_early     = omap_4430sdp_init_early,
diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c
index 933e9353cb37..db110fdb8b2c 100644
--- a/arch/arm/mach-omap2/board-am3517crane.c
+++ b/arch/arm/mach-omap2/board-am3517crane.c
@@ -98,7 +98,7 @@ static void __init am3517_crane_init(void)
 }
 
 MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = am3517_crane_init_early,
diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
index f3006c304150..1325085e453d 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -490,7 +490,7 @@ static void __init am3517_evm_init(void)
 }
 
 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = am3517_evm_init_early,
diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c
index 70211703ff9f..67800e647d7a 100644
--- a/arch/arm/mach-omap2/board-apollon.c
+++ b/arch/arm/mach-omap2/board-apollon.c
@@ -350,7 +350,7 @@ static void __init omap_apollon_map_io(void)
 
 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap_apollon_map_io,
         .init_early     = omap_apollon_init_early,
diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c
index 3af8aab435b5..38179c175503 100644
--- a/arch/arm/mach-omap2/board-cm-t35.c
+++ b/arch/arm/mach-omap2/board-cm-t35.c
@@ -634,7 +634,7 @@ static void __init cm_t3730_init(void)
 }
 
 MACHINE_START(CM_T35, "Compulab CM-T35")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = cm_t35_init_early,
@@ -644,7 +644,7 @@ MACHINE_START(CM_T35, "Compulab CM-T35")
 MACHINE_END
 
 MACHINE_START(CM_T3730, "Compulab CM-T3730")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = cm_t35_init_early,
diff --git a/arch/arm/mach-omap2/board-cm-t3517.c b/arch/arm/mach-omap2/board-cm-t3517.c
index 05c72f4c1b57..aed9c29f9fae 100644
--- a/arch/arm/mach-omap2/board-cm-t3517.c
+++ b/arch/arm/mach-omap2/board-cm-t3517.c
@@ -299,7 +299,7 @@ static void __init cm_t3517_init(void)
 }
 
 MACHINE_START(CM_T3517, "Compulab CM-T3517")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = cm_t3517_init_early,
diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c
index b6002ec31c6a..99a42432ac93 100644
--- a/arch/arm/mach-omap2/board-devkit8000.c
+++ b/arch/arm/mach-omap2/board-devkit8000.c
@@ -667,7 +667,7 @@ static void __init devkit8000_init(void)
 }
 
 MACHINE_START(DEVKIT8000, "OMAP3 Devkit8000")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = devkit8000_init_early,
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 54db41a84a9b..25642697281b 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -66,7 +66,7 @@ static void __init omap_generic_map_io(void)
 /* XXX This machine entry name should be updated */
 MACHINE_START(OMAP_GENERIC, "Generic OMAP24xx")
         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap_generic_map_io,
         .init_early     = omap_generic_init_early,
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index 45de2b319ec9..a58c6ba06f7f 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -382,7 +382,7 @@ static void __init omap_h4_map_io(void)
 
 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap_h4_map_io,
         .init_early     = omap_h4_init_early,
diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index 35be778caf1b..7040352b16b4 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -672,7 +672,7 @@ static void __init igep_init(void)
 }
 
 MACHINE_START(IGEP0020, "IGEP v2 board")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = igep_init_early,
@@ -682,7 +682,7 @@ MACHINE_START(IGEP0020, "IGEP v2 board")
 MACHINE_END
 
 MACHINE_START(IGEP0030, "IGEP OMAP3 module")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = igep_init_early,
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index 218764c9377e..edf752bb24b1 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -333,7 +333,7 @@ static void __init omap_ldp_init(void)
 }
 
 MACHINE_START(OMAP_LDP, "OMAP LDP board")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = omap_ldp_init_early,
diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index e11f0c5d608a..6ce748154f24 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -695,7 +695,7 @@ static void __init n8x0_init_machine(void)
 }
 
 MACHINE_START(NOKIA_N800, "Nokia N800")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = n8x0_map_io,
         .init_early     = n8x0_init_early,
@@ -705,7 +705,7 @@ MACHINE_START(NOKIA_N800, "Nokia N800")
 MACHINE_END
 
 MACHINE_START(NOKIA_N810, "Nokia N810")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = n8x0_map_io,
         .init_early     = n8x0_init_early,
@@ -715,7 +715,7 @@ MACHINE_START(NOKIA_N810, "Nokia N810")
 MACHINE_END
 
 MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = n8x0_map_io,
         .init_early     = n8x0_init_early,
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 3ae16b4e3f52..1fde8a0474bb 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -557,7 +557,7 @@ static void __init omap3_beagle_init(void)
 
 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = omap3_beagle_init_early,
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index c452b3f3331a..15c69a0c1ce5 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -681,7 +681,7 @@ static void __init omap3_evm_init(void)
 
 MACHINE_START(OMAP3EVM, "OMAP3 EVM")
         /* Maintainer: Syed Mohammed Khasim - Texas Instruments */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = omap3_evm_init_early,
diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c
index 703aeb5b8fd4..01354a214caf 100644
--- a/arch/arm/mach-omap2/board-omap3logic.c
+++ b/arch/arm/mach-omap2/board-omap3logic.c
@@ -209,7 +209,7 @@ static void __init omap3logic_init(void)
 }
 
 MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .map_io         = omap3_map_io,
         .init_early     = omap3logic_init_early,
         .init_irq       = omap3_init_irq,
@@ -218,7 +218,7 @@ MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
 MACHINE_END
 
 MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .map_io         = omap3_map_io,
         .init_early     = omap3logic_init_early,
         .init_irq       = omap3_init_irq,
diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c
index 080d7bd6795e..ace56938dd3b 100644
--- a/arch/arm/mach-omap2/board-omap3pandora.c
+++ b/arch/arm/mach-omap2/board-omap3pandora.c
@@ -606,7 +606,7 @@ static void __init omap3pandora_init(void)
 }
 
 MACHINE_START(OMAP3_PANDORA, "Pandora Handheld Console")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = omap3pandora_init_early,
diff --git a/arch/arm/mach-omap2/board-omap3stalker.c b/arch/arm/mach-omap2/board-omap3stalker.c
index 8e104980ea26..ba13e1d5d0ab 100644
--- a/arch/arm/mach-omap2/board-omap3stalker.c
+++ b/arch/arm/mach-omap2/board-omap3stalker.c
@@ -494,7 +494,7 @@ static void __init omap3_stalker_init(void)
 
 MACHINE_START(SBC3530, "OMAP3 STALKER")
         /* Maintainer: Jason Lam -lzg@ema-tech.com */
-        .boot_params            = 0x80000100,
+        .atag_offset            = 0x100,
         .map_io                 = omap3_map_io,
         .init_early             = omap3_stalker_init_early,
         .init_irq               = omap3_stalker_init_irq,
diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c
index 852ea0464057..49e4bd207cb6 100644
--- a/arch/arm/mach-omap2/board-omap3touchbook.c
+++ b/arch/arm/mach-omap2/board-omap3touchbook.c
@@ -404,7 +404,7 @@ static void __init omap3_touchbook_init(void)
 
 MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
         /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = omap3_touchbook_init_early,
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 9aaa96057666..683bede73d54 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -583,7 +583,7 @@ static void __init omap4_panda_map_io(void)
 
 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
         /* Maintainer: David Anders - Texas Instruments Inc */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap4_panda_map_io,
         .init_early     = omap4_panda_init_early,
diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c
index f949a9954d76..e592fb134c4e 100644
--- a/arch/arm/mach-omap2/board-overo.c
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -561,7 +561,7 @@ static void __init overo_init(void)
 }
 
 MACHINE_START(OVERO, "Gumstix Overo")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = overo_init_early,
diff --git a/arch/arm/mach-omap2/board-rm680.c b/arch/arm/mach-omap2/board-rm680.c
index 7dfed24ee12e..9a8ce239ba9e 100644
--- a/arch/arm/mach-omap2/board-rm680.c
+++ b/arch/arm/mach-omap2/board-rm680.c
@@ -153,7 +153,7 @@ static void __init rm680_map_io(void)
 }
 
 MACHINE_START(NOKIA_RM680, "Nokia RM-680 board")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = rm680_map_io,
         .init_early     = rm680_init_early,
diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index 5ea142f9bc97..a6c473bbb3d6 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -156,7 +156,7 @@ static void __init rx51_reserve(void)
 
 MACHINE_START(NOKIA_RX51, "Nokia RX-51 board")
         /* Maintainer: Lauri Leukkunen <lauri.leukkunen@nokia.com> */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = rx51_reserve,
         .map_io         = rx51_map_io,
         .init_early     = rx51_init_early,
diff --git a/arch/arm/mach-omap2/board-ti8168evm.c b/arch/arm/mach-omap2/board-ti8168evm.c
index a85d5b0b11da..e41958acb6b6 100644
--- a/arch/arm/mach-omap2/board-ti8168evm.c
+++ b/arch/arm/mach-omap2/board-ti8168evm.c
@@ -48,7 +48,7 @@ static void __init ti8168_evm_map_io(void)
 
 MACHINE_START(TI8168EVM, "ti8168evm")
         /* Maintainer: Texas Instruments */
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .map_io         = ti8168_evm_map_io,
         .init_early     = ti8168_init_early,
         .init_irq       = ti816x_init_irq,
diff --git a/arch/arm/mach-omap2/board-zoom.c b/arch/arm/mach-omap2/board-zoom.c
index 8a98c3c303fc..72f1db4863e5 100644
--- a/arch/arm/mach-omap2/board-zoom.c
+++ b/arch/arm/mach-omap2/board-zoom.c
@@ -133,7 +133,7 @@ static void __init omap_zoom_init(void)
 }
 
 MACHINE_START(OMAP_ZOOM2, "OMAP Zoom2 board")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = omap_zoom_init_early,
@@ -143,7 +143,7 @@ MACHINE_START(OMAP_ZOOM2, "OMAP Zoom2 board")
 MACHINE_END
 
 MACHINE_START(OMAP_ZOOM3, "OMAP Zoom3 board")
-        .boot_params    = 0x80000100,
+        .atag_offset    = 0x100,
         .reserve        = omap_reserve,
         .map_io         = omap3_map_io,
         .init_early     = omap_zoom_init_early,
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 2ce1ce6fb4db..d6d01cb7f28a 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -16,7 +16,6 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -250,6 +249,7 @@ static void __init _omap2_map_common_io(void)
 
         omap2_check_revision();
         omap_sram_init();
+        omap_init_consistent_dma_size();
 }
 
 #ifdef CONFIG_SOC_OMAP2420
diff --git a/arch/arm/mach-orion5x/d2net-setup.c b/arch/arm/mach-orion5x/d2net-setup.c
index 19cf5bf99f1b..8c8300951f46 100644
--- a/arch/arm/mach-orion5x/d2net-setup.c
+++ b/arch/arm/mach-orion5x/d2net-setup.c
@@ -336,7 +336,7 @@ static void __init d2net_init(void)
 
 #ifdef CONFIG_MACH_D2NET
 MACHINE_START(D2NET, "LaCie d2 Network")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = d2net_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
@@ -348,7 +348,7 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_BIGDISK
 MACHINE_START(BIGDISK, "LaCie Big Disk Network")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = d2net_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/db88f5281-setup.c b/arch/arm/mach-orion5x/db88f5281-setup.c
index a3e3e9e5e328..88432aba972c 100644
--- a/arch/arm/mach-orion5x/db88f5281-setup.c
+++ b/arch/arm/mach-orion5x/db88f5281-setup.c
@@ -359,7 +359,7 @@ static void __init db88f5281_init(void)
 
 MACHINE_START(DB88F5281, "Marvell Orion-2 Development Board")
         /* Maintainer: Tzachi Perelstein <tzachi@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = db88f5281_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c
index c105556a0ee1..9e5c1663fc4f 100644
--- a/arch/arm/mach-orion5x/dns323-setup.c
+++ b/arch/arm/mach-orion5x/dns323-setup.c
@@ -730,7 +730,7 @@ static void __init dns323_init(void)
 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
 MACHINE_START(DNS323, "D-Link DNS-323")
         /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = dns323_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/edmini_v2-setup.c b/arch/arm/mach-orion5x/edmini_v2-setup.c
index b67cff0d4cfe..70a4e9265f06 100644
--- a/arch/arm/mach-orion5x/edmini_v2-setup.c
+++ b/arch/arm/mach-orion5x/edmini_v2-setup.c
@@ -251,7 +251,7 @@ static void __init edmini_v2_init(void)
 /* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
 MACHINE_START(EDMINI_V2, "LaCie Ethernet Disk mini V2")
         /* Maintainer: Christopher Moore <moore@free.fr> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = edmini_v2_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/kurobox_pro-setup.c b/arch/arm/mach-orion5x/kurobox_pro-setup.c
index 00381249d766..9115511dc035 100644
--- a/arch/arm/mach-orion5x/kurobox_pro-setup.c
+++ b/arch/arm/mach-orion5x/kurobox_pro-setup.c
@@ -380,7 +380,7 @@ static void __init kurobox_pro_init(void)
 #ifdef CONFIG_MACH_KUROBOX_PRO
 MACHINE_START(KUROBOX_PRO, "Buffalo/Revogear Kurobox Pro")
         /* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = kurobox_pro_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
@@ -393,7 +393,7 @@ MACHINE_END
 #ifdef CONFIG_MACH_LINKSTATION_PRO
 MACHINE_START(LINKSTATION_PRO, "Buffalo Linkstation Pro/Live")
         /* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = kurobox_pro_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/ls-chl-setup.c b/arch/arm/mach-orion5x/ls-chl-setup.c
index 5065803ca82a..9503fff404e3 100644
--- a/arch/arm/mach-orion5x/ls-chl-setup.c
+++ b/arch/arm/mach-orion5x/ls-chl-setup.c
@@ -318,7 +318,7 @@ static void __init lschl_init(void)
 
 MACHINE_START(LINKSTATION_LSCHL, "Buffalo Linkstation LiveV3 (LS-CHL)")
         /* Maintainer: Ash Hughes <ashley.hughes@blueyonder.co.uk> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = lschl_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/ls_hgl-setup.c b/arch/arm/mach-orion5x/ls_hgl-setup.c
index 8503d0a42d41..ed6d772f4a24 100644
--- a/arch/arm/mach-orion5x/ls_hgl-setup.c
+++ b/arch/arm/mach-orion5x/ls_hgl-setup.c
@@ -265,7 +265,7 @@ static void __init ls_hgl_init(void)
 
 MACHINE_START(LINKSTATION_LS_HGL, "Buffalo Linkstation LS-HGL")
         /* Maintainer: Zhu Qingsen <zhuqs@cn.fujistu.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = ls_hgl_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/lsmini-setup.c b/arch/arm/mach-orion5x/lsmini-setup.c
index 9c82723c05c0..743f7f1db181 100644
--- a/arch/arm/mach-orion5x/lsmini-setup.c
+++ b/arch/arm/mach-orion5x/lsmini-setup.c
@@ -267,7 +267,7 @@ static void __init lsmini_init(void)
 #ifdef CONFIG_MACH_LINKSTATION_MINI
 MACHINE_START(LINKSTATION_MINI, "Buffalo Linkstation Mini")
         /* Maintainer: Alexey Kopytko <alexey@kopytko.ru> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = lsmini_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/mss2-setup.c b/arch/arm/mach-orion5x/mss2-setup.c
index ef3bb8e9a4c2..6020e26b1c71 100644
--- a/arch/arm/mach-orion5x/mss2-setup.c
+++ b/arch/arm/mach-orion5x/mss2-setup.c
@@ -261,7 +261,7 @@ static void __init mss2_init(void)
 
 MACHINE_START(MSS2, "Maxtor Shared Storage II")
         /* Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = mss2_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/mv2120-setup.c b/arch/arm/mach-orion5x/mv2120-setup.c
index 63ff10c3c464..b3356ada64b9 100644
--- a/arch/arm/mach-orion5x/mv2120-setup.c
+++ b/arch/arm/mach-orion5x/mv2120-setup.c
@@ -229,7 +229,7 @@ static void __init mv2120_init(void)
 /* Warning: HP uses a wrong mach-type (=526) in their bootloader */
 MACHINE_START(MV2120, "HP Media Vault mv2120")
         /* Maintainer: Martin Michlmayr <tbm@cyrius.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = mv2120_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/net2big-setup.c b/arch/arm/mach-orion5x/net2big-setup.c
index e43b39cc7fe9..6197c79a2ecb 100644
--- a/arch/arm/mach-orion5x/net2big-setup.c
+++ b/arch/arm/mach-orion5x/net2big-setup.c
@@ -419,7 +419,7 @@ static void __init net2big_init(void)
 
 /* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
 MACHINE_START(NET2BIG, "LaCie 2Big Network")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = net2big_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c b/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c
index 291d22bf44c9..8c876664f494 100644
--- a/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c
+++ b/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c
@@ -169,7 +169,7 @@ subsys_initcall(rd88f5181l_fxo_pci_init);
 
 MACHINE_START(RD88F5181L_FXO, "Marvell Orion-VoIP FXO Reference Design")
         /* Maintainer: Nicolas Pitre <nico@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = rd88f5181l_fxo_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c b/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c
index 3f02362e1632..994644f59d8d 100644
--- a/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c
+++ b/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c
@@ -181,7 +181,7 @@ subsys_initcall(rd88f5181l_ge_pci_init);
 
 MACHINE_START(RD88F5181L_GE, "Marvell Orion-VoIP GE Reference Design")
         /* Maintainer: Lennert Buytenhek <buytenh@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = rd88f5181l_ge_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/rd88f5182-setup.c b/arch/arm/mach-orion5x/rd88f5182-setup.c
index 27fd38e658bd..1903d25ecae9 100644
--- a/arch/arm/mach-orion5x/rd88f5182-setup.c
+++ b/arch/arm/mach-orion5x/rd88f5182-setup.c
@@ -306,7 +306,7 @@ static void __init rd88f5182_init(void)
 
 MACHINE_START(RD88F5182, "Marvell Orion-NAS Reference Design")
         /* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = rd88f5182_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/rd88f6183ap-ge-setup.c b/arch/arm/mach-orion5x/rd88f6183ap-ge-setup.c
index ad2eba9286ad..e06fdae77f0a 100644
--- a/arch/arm/mach-orion5x/rd88f6183ap-ge-setup.c
+++ b/arch/arm/mach-orion5x/rd88f6183ap-ge-setup.c
@@ -122,7 +122,7 @@ subsys_initcall(rd88f6183ap_ge_pci_init);
 
 MACHINE_START(RD88F6183AP_GE, "Marvell Orion-1-90 AP GE Reference Design")
         /* Maintainer: Lennert Buytenhek <buytenh@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = rd88f6183ap_ge_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/terastation_pro2-setup.c b/arch/arm/mach-orion5x/terastation_pro2-setup.c
index a34e4fac72b0..306183273eb9 100644
--- a/arch/arm/mach-orion5x/terastation_pro2-setup.c
+++ b/arch/arm/mach-orion5x/terastation_pro2-setup.c
@@ -358,7 +358,7 @@ static void __init tsp2_init(void)
 
 MACHINE_START(TERASTATION_PRO2, "Buffalo Terastation Pro II/Live")
         /* Maintainer:  Sylver Bruneau <sylver.bruneau@googlemail.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = tsp2_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/ts209-setup.c b/arch/arm/mach-orion5x/ts209-setup.c
index c9831614e355..3dbcd5ed77ef 100644
--- a/arch/arm/mach-orion5x/ts209-setup.c
+++ b/arch/arm/mach-orion5x/ts209-setup.c
@@ -323,7 +323,7 @@ static void __init qnap_ts209_init(void)
 
 MACHINE_START(TS209, "QNAP TS-109/TS-209")
         /* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = qnap_ts209_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/ts409-setup.c b/arch/arm/mach-orion5x/ts409-setup.c
index cc33b2222bad..23c9e2e5e550 100644
--- a/arch/arm/mach-orion5x/ts409-setup.c
+++ b/arch/arm/mach-orion5x/ts409-setup.c
@@ -312,7 +312,7 @@ static void __init qnap_ts409_init(void)
 
 MACHINE_START(TS409, "QNAP TS-409")
         /* Maintainer:  Sylver Bruneau <sylver.bruneau@gmail.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = qnap_ts409_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c
index 6b7b54116f30..6c75cd35c4c8 100644
--- a/arch/arm/mach-orion5x/ts78xx-setup.c
+++ b/arch/arm/mach-orion5x/ts78xx-setup.c
@@ -621,7 +621,7 @@ static void __init ts78xx_init(void)
 
 MACHINE_START(TS78XX, "Technologic Systems TS-78xx SBC")
         /* Maintainer: Alexander Clouter <alex@digriz.org.uk> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = ts78xx_init,
         .map_io         = ts78xx_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/wnr854t-setup.c b/arch/arm/mach-orion5x/wnr854t-setup.c
index 2653595f901c..1c63a76f3ca3 100644
--- a/arch/arm/mach-orion5x/wnr854t-setup.c
+++ b/arch/arm/mach-orion5x/wnr854t-setup.c
@@ -173,7 +173,7 @@ subsys_initcall(wnr854t_pci_init);
 
 MACHINE_START(WNR854T, "Netgear WNR854T")
         /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = wnr854t_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-orion5x/wrt350n-v2-setup.c b/arch/arm/mach-orion5x/wrt350n-v2-setup.c
index 251ef1543e53..4fd9f18c9d5d 100644
--- a/arch/arm/mach-orion5x/wrt350n-v2-setup.c
+++ b/arch/arm/mach-orion5x/wrt350n-v2-setup.c
@@ -261,7 +261,7 @@ subsys_initcall(wrt350n_v2_pci_init);
 
 MACHINE_START(WRT350N_V2, "Linksys WRT350N v2")
         /* Maintainer: Lennert Buytenhek <buytenh@marvell.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_machine   = wrt350n_v2_init,
         .map_io         = orion5x_map_io,
         .init_early     = orion5x_init_early,
diff --git a/arch/arm/mach-pnx4008/core.c b/arch/arm/mach-pnx4008/core.c
index 63399755f199..cdb95e726f5c 100644
--- a/arch/arm/mach-pnx4008/core.c
+++ b/arch/arm/mach-pnx4008/core.c
@@ -264,7 +264,7 @@ extern struct sys_timer pnx4008_timer;
 
 MACHINE_START(PNX4008, "Philips PNX4008")
         /* Maintainer: MontaVista Software Inc. */
-        .boot_params            = 0x80000100,
+        .atag_offset            = 0x100,
         .map_io                 = pnx4008_map_io,
         .init_irq               = pnx4008_init_irq,
         .init_machine           = pnx4008_init,
diff --git a/arch/arm/mach-prima2/prima2.c b/arch/arm/mach-prima2/prima2.c
index f57124bdd143..5654a04319fd 100644
--- a/arch/arm/mach-prima2/prima2.c
+++ b/arch/arm/mach-prima2/prima2.c
@@ -31,7 +31,7 @@ static const char *prima2cb_dt_match[] __initdata = {
 
 MACHINE_START(PRIMA2_EVB, "prima2cb")
         /* Maintainer: Barry Song <baohua.song@csr.com> */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .init_early     = sirfsoc_of_clk_init,
         .map_io         = sirfsoc_map_lluart,
         .init_irq       = sirfsoc_of_irq_init,
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index ef3e8b1e06c1..7765d677adbb 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -828,5 +828,5 @@ MACHINE_START(BALLOON3, "Balloon3")
         .handle_irq     = pxa27x_handle_irq,
         .timer          = &pxa_timer,
         .init_machine   = balloon3_init,
-        .boot_params    = PLAT_PHYS_OFFSET + 0x100,
+        .atag_offset    = 0x100,
 MACHINE_END
diff --git a/arch/arm/mach-pxa/capc7117.c b/arch/arm/mach-pxa/capc7117.c
index 648b0ab2bf77..4efc16d39c79 100644
--- a/arch/arm/mach-pxa/capc7117.c
+++ b/arch/arm/mach-pxa/capc7117.c
@@ -148,7 +148,7 @@ static void __init capc7117_init(void)
 
 MACHINE_START(CAPC7117,
               "Embedian CAPC-7117 evaluation kit based on the MXM-8x10 CoM")
-        .boot_params = 0xa0000100,
+        .atag_offset = 0x100,
         .map_io = pxa3xx_map_io,
         .init_irq = pxa3xx_init_irq,
         .handle_irq = pxa3xx_handle_irq,
diff --git a/arch/arm/mach-pxa/cm-x2xx.c b/arch/arm/mach-pxa/cm-x2xx.c
index 13cf518bbbf8..349896c53abd 100644
--- a/arch/arm/mach-pxa/cm-x2xx.c
+++ b/arch/arm/mach-pxa/cm-x2xx.c
@@ -513,7 +513,7 @@ static void __init cmx2xx_map_io(void)
 #endif
 
 MACHINE_START(ARMCORE, "Compulab CM-X2XX")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = cmx2xx_map_io,
         .nr_irqs        = CMX2XX_NR_IRQS,
         .init_irq       = cmx2xx_init_irq,
diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c
index b6a51340270b..9ac0225cd51b 100644
--- a/arch/arm/mach-pxa/cm-x300.c
+++ b/arch/arm/mach-pxa/cm-x300.c
@@ -852,7 +852,7 @@ static void __init cm_x300_fixup(struct machine_desc *mdesc, struct tag *tags,
 }
 
 MACHINE_START(CM_X300, "CM-X300 module")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa3xx_map_io,
         .init_irq       = pxa3xx_init_irq,
         .handle_irq     = pxa3xx_handle_irq,
diff --git a/arch/arm/mach-pxa/colibri-pxa270.c b/arch/arm/mach-pxa/colibri-pxa270.c
index 870920934ecf..7db66465716f 100644
--- a/arch/arm/mach-pxa/colibri-pxa270.c
+++ b/arch/arm/mach-pxa/colibri-pxa270.c
@@ -306,7 +306,7 @@ static void __init colibri_pxa270_income_init(void)
 }
 
 MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
-        .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
+        .atag_offset    = 0x100,
         .init_machine   = colibri_pxa270_init,
         .map_io         = pxa27x_map_io,
         .init_irq       = pxa27x_init_irq,
@@ -315,7 +315,7 @@ MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
 MACHINE_END
 
 MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .init_machine   = colibri_pxa270_income_init,
         .map_io         = pxa27x_map_io,
         .init_irq       = pxa27x_init_irq,
diff --git a/arch/arm/mach-pxa/colibri-pxa300.c b/arch/arm/mach-pxa/colibri-pxa300.c
index 60a6781e7a8e..c825e8bf2db1 100644
--- a/arch/arm/mach-pxa/colibri-pxa300.c
+++ b/arch/arm/mach-pxa/colibri-pxa300.c
@@ -183,7 +183,7 @@ void __init colibri_pxa300_init(void)
 }
 
 MACHINE_START(COLIBRI300, "Toradex Colibri PXA300")
-        .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
+        .atag_offset    = 0x100,
         .init_machine   = colibri_pxa300_init,
         .map_io         = pxa3xx_map_io,
         .init_irq       = pxa3xx_init_irq,
diff --git a/arch/arm/mach-pxa/colibri-pxa320.c b/arch/arm/mach-pxa/colibri-pxa320.c
index d2c6631915d4..692e1ffc5586 100644
--- a/arch/arm/mach-pxa/colibri-pxa320.c
+++ b/arch/arm/mach-pxa/colibri-pxa320.c
@@ -253,7 +253,7 @@ void __init colibri_pxa320_init(void)
 }
 
 MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
-        .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
+        .atag_offset    = 0x100,
         .init_machine   = colibri_pxa320_init,
         .map_io         = pxa3xx_map_io,
         .init_irq       = pxa3xx_init_irq,
diff --git a/arch/arm/mach-pxa/csb726.c b/arch/arm/mach-pxa/csb726.c
index fe812eafb1f1..5e2cf39e9e4c 100644
--- a/arch/arm/mach-pxa/csb726.c
+++ b/arch/arm/mach-pxa/csb726.c
@@ -272,7 +272,7 @@ static void __init csb726_init(void)
 }
 
 MACHINE_START(CSB726, "Cogent CSB726")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .init_irq       = pxa27x_init_irq,
         .handle_irq       = pxa27x_handle_irq,
diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c
index 2e37ea52b372..94acc0b01dd6 100644
--- a/arch/arm/mach-pxa/em-x270.c
+++ b/arch/arm/mach-pxa/em-x270.c
@@ -1299,7 +1299,7 @@ static void __init em_x270_init(void)
 }
 
 MACHINE_START(EM_X270, "Compulab EM-X270")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .init_irq       = pxa27x_init_irq,
         .handle_irq     = pxa27x_handle_irq,
@@ -1308,7 +1308,7 @@ MACHINE_START(EM_X270, "Compulab EM-X270")
 MACHINE_END
 
 MACHINE_START(EXEDA, "Compulab eXeda")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .init_irq       = pxa27x_init_irq,
         .handle_irq     = pxa27x_handle_irq,
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index b4599ec9d619..e823c54057f3 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -189,7 +189,7 @@ static void __init e330_init(void)
 
 MACHINE_START(E330, "Toshiba e330")
         /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa25x_map_io,
         .nr_irqs        = ESERIES_NR_IRQS,
         .init_irq       = pxa25x_init_irq,
@@ -239,7 +239,7 @@ static void __init e350_init(void)
 
 MACHINE_START(E350, "Toshiba e350")
         /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa25x_map_io,
         .nr_irqs        = ESERIES_NR_IRQS,
         .init_irq       = pxa25x_init_irq,
@@ -362,7 +362,7 @@ static void __init e400_init(void)
 
 MACHINE_START(E400, "Toshiba e400")
         /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa25x_map_io,
         .nr_irqs        = ESERIES_NR_IRQS,
         .init_irq       = pxa25x_init_irq,
@@ -551,7 +551,7 @@ static void __init e740_init(void)
 
 MACHINE_START(E740, "Toshiba e740")
         /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa25x_map_io,
         .nr_irqs        = ESERIES_NR_IRQS,
         .init_irq       = pxa25x_init_irq,
@@ -743,7 +743,7 @@ static void __init e750_init(void)
 
 MACHINE_START(E750, "Toshiba e750")
         /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa25x_map_io,
         .nr_irqs        = ESERIES_NR_IRQS,
         .init_irq       = pxa25x_init_irq,
@@ -948,7 +948,7 @@ static void __init e800_init(void)
 
 MACHINE_START(E800, "Toshiba e800")
         /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa25x_map_io,
         .nr_irqs        = ESERIES_NR_IRQS,
         .init_irq       = pxa25x_init_irq,
diff --git a/arch/arm/mach-pxa/ezx.c b/arch/arm/mach-pxa/ezx.c
index b73eadb9f5dc..8308eee5a924 100644
--- a/arch/arm/mach-pxa/ezx.c
+++ b/arch/arm/mach-pxa/ezx.c
@@ -797,7 +797,7 @@ static void __init a780_init(void)
 }
 
 MACHINE_START(EZX_A780, "Motorola EZX A780")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .nr_irqs        = EZX_NR_IRQS,
         .init_irq       = pxa27x_init_irq,
@@ -863,7 +863,7 @@ static void __init e680_init(void)
 }
 
 MACHINE_START(EZX_E680, "Motorola EZX E680")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .nr_irqs        = EZX_NR_IRQS,
         .init_irq       = pxa27x_init_irq,
@@ -929,7 +929,7 @@ static void __init a1200_init(void)
 }
 
 MACHINE_START(EZX_A1200, "Motorola EZX A1200")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .nr_irqs        = EZX_NR_IRQS,
         .init_irq       = pxa27x_init_irq,
@@ -1120,7 +1120,7 @@ static void __init a910_init(void)
 }
 
 MACHINE_START(EZX_A910, "Motorola EZX A910")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .nr_irqs        = EZX_NR_IRQS,
         .init_irq       = pxa27x_init_irq,
@@ -1186,7 +1186,7 @@ static void __init e6_init(void)
 }
 
 MACHINE_START(EZX_E6, "Motorola EZX E6")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .nr_irqs        = EZX_NR_IRQS,
         .init_irq       = pxa27x_init_irq,
@@ -1226,7 +1226,7 @@ static void __init e2_init(void)
 }
 
 MACHINE_START(EZX_E2, "Motorola EZX E2")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .nr_irqs        = EZX_NR_IRQS,
         .init_irq       = pxa27x_init_irq,
diff --git a/arch/arm/mach-pxa/gumstix.c b/arch/arm/mach-pxa/gumstix.c
index deaa111c91f9..9c8208ca0415 100644
--- a/arch/arm/mach-pxa/gumstix.c
+++ b/arch/arm/mach-pxa/gumstix.c
@@ -233,7 +233,7 @@ static void __init gumstix_init(void)
 }
 
 MACHINE_START(GUMSTIX, "Gumstix")
-        .boot_params    = 0xa0000100, /* match u-boot bi_boot_params */
+        .atag_offset    = 0x100, /* match u-boot bi_boot_params */
         .map_io         = pxa25x_map_io,
         .init_irq       = pxa25x_init_irq,
         .handle_irq     = pxa25x_handle_irq,
diff --git a/arch/arm/mach-pxa/h5000.c b/arch/arm/mach-pxa/h5000.c
index 0a235128914d..4b5e110640b1 100644
--- a/arch/arm/mach-pxa/h5000.c
+++ b/arch/arm/mach-pxa/h5000.c
@@ -203,7 +203,7 @@ static void __init h5000_init(void)
 }
 
 MACHINE_START(H5400, "HP iPAQ H5000")
-        .boot_params = 0xa0000100,
+        .atag_offset = 0x100,
         .map_io = pxa25x_map_io,
         .init_irq = pxa25x_init_irq,
         .handle_irq = pxa25x_handle_irq,
diff --git a/arch/arm/mach-pxa/himalaya.c b/arch/arm/mach-pxa/himalaya.c
index a997d0ab2872..f2c324570844 100644
--- a/arch/arm/mach-pxa/himalaya.c
+++ b/arch/arm/mach-pxa/himalaya.c
@@ -158,7 +158,7 @@ static void __init himalaya_init(void)
 
 
 MACHINE_START(HIMALAYA, "HTC Himalaya")
-        .boot_params = 0xa0000100,
+        .atag_offset = 0x100,
         .map_io = pxa25x_map_io,
         .init_irq = pxa25x_init_irq,
         .handle_irq = pxa25x_handle_irq,
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index c748a473a2ff..6f6368ece9bd 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -838,7 +838,7 @@ static void __init hx4700_init(void)
 }
 
 MACHINE_START(H4700, "HP iPAQ HX4700")
-        .boot_params  = 0xa0000100,
+        .atag_offset  = 0x100,
         .map_io       = pxa27x_map_io,
         .nr_irqs      = HX4700_NR_IRQS,
         .init_irq     = pxa27x_init_irq,
diff --git a/arch/arm/mach-pxa/icontrol.c b/arch/arm/mach-pxa/icontrol.c
index d427429f1f34..f78d5db758da 100644
--- a/arch/arm/mach-pxa/icontrol.c
+++ b/arch/arm/mach-pxa/icontrol.c
@@ -191,7 +191,7 @@ static void __init icontrol_init(void)
 }
 
 MACHINE_START(ICONTROL, "iControl/SafeTcam boards using Embedian MXM-8x10 CoM")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa3xx_map_io,
         .init_irq       = pxa3xx_init_irq,
         .handle_irq     = pxa3xx_handle_irq,
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c
index 8f97e15e86e5..0037e57e0cec 100644
--- a/arch/arm/mach-pxa/littleton.c
+++ b/arch/arm/mach-pxa/littleton.c
@@ -437,7 +437,7 @@ static void __init littleton_init(void)
 }
 
 MACHINE_START(LITTLETON, "Marvell Form Factor Development Platform (aka Littleton)")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa3xx_map_io,
         .nr_irqs        = LITTLETON_NR_IRQS,
         .init_irq       = pxa3xx_init_irq,
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index c171d6ebee49..16df0fc0879a 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -499,7 +499,7 @@ static void __init lpd270_map_io(void)
 
 MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
         /* Maintainer: Peter Barada */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = lpd270_map_io,
         .nr_irqs        = LPD270_NR_IRQS,
         .init_irq       = lpd270_init_irq,
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index 5fe5bcd7c0a1..4b796c37af3e 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -753,7 +753,7 @@ static void __init magician_init(void)
 
 
 MACHINE_START(MAGICIAN, "HTC Magician")
-        .boot_params = 0xa0000100,
+        .atag_offset = 0x100,
         .map_io = pxa27x_map_io,
         .nr_irqs = MAGICIAN_NR_IRQS,
         .init_irq = pxa27x_init_irq,
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 4622eb78ef25..cc6e14f6d114 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -616,7 +616,7 @@ static void __init mainstone_map_io(void)
 
 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
         /* Maintainer: MontaVista Software Inc. */
-        .boot_params    = 0xa0000100,   /* BLOB boot parameter setting */
+        .atag_offset    = 0x100,        /* BLOB boot parameter setting */
         .map_io         = mainstone_map_io,
         .nr_irqs        = MAINSTONE_NR_IRQS,
         .init_irq       = mainstone_init_irq,
diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
index 64810f908e5b..b938fc2c316a 100644
--- a/arch/arm/mach-pxa/mioa701.c
+++ b/arch/arm/mach-pxa/mioa701.c
@@ -751,7 +751,7 @@ static void mioa701_machine_exit(void)
 }
 
 MACHINE_START(MIOA701, "MIO A701")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = &pxa27x_map_io,
         .init_irq       = &pxa27x_init_irq,
         .handle_irq     = &pxa27x_handle_irq,
diff --git a/arch/arm/mach-pxa/mp900.c b/arch/arm/mach-pxa/mp900.c
index fb408861dbcf..4af5d513c380 100644
--- a/arch/arm/mach-pxa/mp900.c
+++ b/arch/arm/mach-pxa/mp900.c
@@ -92,7 +92,7 @@ static void __init mp900c_init(void)
 
 /* Maintainer - Michael Petchkovsky <mkpetch@internode.on.net> */
 MACHINE_START(NEC_MP900, "MobilePro900/C")
-        .boot_params    = 0xa0220100,
+        .atag_offset    = 0x220100,
         .timer          = &pxa_timer,
         .map_io         = pxa25x_map_io,
         .init_irq       = pxa25x_init_irq,
diff --git a/arch/arm/mach-pxa/palmld.c b/arch/arm/mach-pxa/palmld.c
index 6b77365ed938..3d4a2819cae1 100644
--- a/arch/arm/mach-pxa/palmld.c
+++ b/arch/arm/mach-pxa/palmld.c
@@ -342,7 +342,7 @@ static void __init palmld_init(void)
 }
 
 MACHINE_START(PALMLD, "Palm LifeDrive")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = palmld_map_io,
         .init_irq       = pxa27x_init_irq,
         .handle_irq     = pxa27x_handle_irq,
diff --git a/arch/arm/mach-pxa/palmt5.c b/arch/arm/mach-pxa/palmt5.c
index 9bd3e47486fb..99d6bcf1f974 100644
--- a/arch/arm/mach-pxa/palmt5.c
+++ b/arch/arm/mach-pxa/palmt5.c
@@ -202,7 +202,7 @@ static void __init palmt5_init(void)
 }
 
 MACHINE_START(PALMT5, "Palm Tungsten|T5")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .reserve        = palmt5_reserve,
         .init_irq       = pxa27x_init_irq,
diff --git a/arch/arm/mach-pxa/palmtc.c b/arch/arm/mach-pxa/palmtc.c
index 6ad4a6c7bc96..6ec7caefb37c 100644
--- a/arch/arm/mach-pxa/palmtc.c
+++ b/arch/arm/mach-pxa/palmtc.c
@@ -537,7 +537,7 @@ static void __init palmtc_init(void)
 };
 
 MACHINE_START(PALMTC, "Palm Tungsten|C")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa25x_map_io,
         .init_irq       = pxa25x_init_irq,
         .handle_irq     = pxa25x_handle_irq,
diff --git a/arch/arm/mach-pxa/palmte2.c b/arch/arm/mach-pxa/palmte2.c
index 664232f3e62c..9376da06404c 100644
--- a/arch/arm/mach-pxa/palmte2.c
+++ b/arch/arm/mach-pxa/palmte2.c
@@ -356,7 +356,7 @@ static void __init palmte2_init(void)
 }
 
 MACHINE_START(PALMTE2, "Palm Tungsten|E2")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa25x_map_io,
         .init_irq       = pxa25x_init_irq,
         .handle_irq     = pxa25x_handle_irq,
diff --git a/arch/arm/mach-pxa/palmtreo.c b/arch/arm/mach-pxa/palmtreo.c
index bb27d4b688d8..7346fbfa8101 100644
--- a/arch/arm/mach-pxa/palmtreo.c
+++ b/arch/arm/mach-pxa/palmtreo.c
@@ -440,7 +440,7 @@ static void __init centro_init(void)
 }
 
 MACHINE_START(TREO680, "Palm Treo 680")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .reserve        = treo_reserve,
         .init_irq       = pxa27x_init_irq,
@@ -450,7 +450,7 @@ MACHINE_START(TREO680, "Palm Treo 680")
 MACHINE_END
 
 MACHINE_START(CENTRO, "Palm Centro 685")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .reserve        = treo_reserve,
         .init_irq       = pxa27x_init_irq,
diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c
index fc4285589c1f..2b9e76fc2c90 100644
--- a/arch/arm/mach-pxa/palmtx.c
+++ b/arch/arm/mach-pxa/palmtx.c
@@ -364,7 +364,7 @@ static void __init palmtx_init(void)
 }
 
 MACHINE_START(PALMTX, "Palm T|X")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = palmtx_map_io,
         .init_irq       = pxa27x_init_irq,
         .handle_irq     = pxa27x_handle_irq,
diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c
index e61c1cc05519..68e18baf8e07 100644
--- a/arch/arm/mach-pxa/palmz72.c
+++ b/arch/arm/mach-pxa/palmz72.c
@@ -399,7 +399,7 @@ static void __init palmz72_init(void)
 }
 
 MACHINE_START(PALMZ72, "Palm Zire72")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .init_irq       = pxa27x_init_irq,
         .handle_irq     = pxa27x_handle_irq,
diff --git a/arch/arm/mach-pxa/pcm027.c b/arch/arm/mach-pxa/pcm027.c
index ffa65dfb8c6f..0b825a353537 100644
--- a/arch/arm/mach-pxa/pcm027.c
+++ b/arch/arm/mach-pxa/pcm027.c
@@ -258,7 +258,7 @@ static void __init pcm027_map_io(void)
 
 MACHINE_START(PCM027, "Phytec Messtechnik GmbH phyCORE-PXA270")
         /* Maintainer: Pengutronix */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pcm027_map_io,
         .nr_irqs        = PCM027_NR_IRQS,
         .init_irq       = pxa27x_init_irq,
diff --git a/arch/arm/mach-pxa/raumfeld.c b/arch/arm/mach-pxa/raumfeld.c
index bbcd90562ebe..6810cddec927 100644
--- a/arch/arm/mach-pxa/raumfeld.c
+++ b/arch/arm/mach-pxa/raumfeld.c
@@ -1086,7 +1086,7 @@ static void __init raumfeld_speaker_init(void)
 
 #ifdef CONFIG_MACH_RAUMFELD_RC
 MACHINE_START(RAUMFELD_RC, "Raumfeld Controller")
-        .boot_params    = RAUMFELD_SDRAM_BASE + 0x100,
+        .atag_offset    = 0x100,
         .init_machine   = raumfeld_controller_init,
         .map_io         = pxa3xx_map_io,
         .init_irq       = pxa3xx_init_irq,
@@ -1097,7 +1097,7 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_RAUMFELD_CONNECTOR
 MACHINE_START(RAUMFELD_CONNECTOR, "Raumfeld Connector")
-        .boot_params    = RAUMFELD_SDRAM_BASE + 0x100,
+        .atag_offset    = 0x100,
         .init_machine   = raumfeld_connector_init,
         .map_io         = pxa3xx_map_io,
         .init_irq       = pxa3xx_init_irq,
@@ -1108,7 +1108,7 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_RAUMFELD_SPEAKER
 MACHINE_START(RAUMFELD_SPEAKER, "Raumfeld Speaker")
-        .boot_params    = RAUMFELD_SDRAM_BASE + 0x100,
+        .atag_offset    = 0x100,
         .init_machine   = raumfeld_speaker_init,
         .map_io         = pxa3xx_map_io,
         .init_irq       = pxa3xx_init_irq,
diff --git a/arch/arm/mach-pxa/saar.c b/arch/arm/mach-pxa/saar.c
index df4356e8acae..602d70b50f81 100644
--- a/arch/arm/mach-pxa/saar.c
+++ b/arch/arm/mach-pxa/saar.c
@@ -596,7 +596,7 @@ static void __init saar_init(void)
 
 MACHINE_START(SAAR, "PXA930 Handheld Platform (aka SAAR)")
         /* Maintainer: Eric Miao <eric.miao@marvell.com> */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa3xx_map_io,
         .init_irq       = pxa3xx_init_irq,
         .handle_irq       = pxa3xx_handle_irq,
diff --git a/arch/arm/mach-pxa/saarb.c b/arch/arm/mach-pxa/saarb.c
index ebd6379c4969..5ce340320ab9 100644
--- a/arch/arm/mach-pxa/saarb.c
+++ b/arch/arm/mach-pxa/saarb.c
@@ -103,7 +103,7 @@ static void __init saarb_init(void)
 }
 
 MACHINE_START(SAARB, "PXA955 Handheld Platform (aka SAARB)")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa3xx_map_io,
         .nr_irqs        = SAARB_NR_IRQS,
         .init_irq       = pxa95x_init_irq,
diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c
index 3f8d0af9e2f7..4c9a48bef569 100644
--- a/arch/arm/mach-pxa/stargate2.c
+++ b/arch/arm/mach-pxa/stargate2.c
@@ -1004,7 +1004,7 @@ MACHINE_START(INTELMOTE2, "IMOTE 2")
         .handle_irq     = pxa27x_handle_irq,
         .timer          = &pxa_timer,
         .init_machine   = imote2_init,
-        .boot_params    = 0xA0000100,
+        .atag_offset    = 0x100,
 MACHINE_END
 #endif
 
@@ -1016,6 +1016,6 @@ MACHINE_START(STARGATE2, "Stargate 2")
         .handle_irq = pxa27x_handle_irq,
         .timer = &pxa_timer,
         .init_machine = stargate2_init,
-        .boot_params = 0xA0000100,
+        .atag_offset = 0x100,
 MACHINE_END
 #endif
diff --git a/arch/arm/mach-pxa/tavorevb.c b/arch/arm/mach-pxa/tavorevb.c
index 32fb58e01b10..ad47bb98f30d 100644
--- a/arch/arm/mach-pxa/tavorevb.c
+++ b/arch/arm/mach-pxa/tavorevb.c
@@ -489,7 +489,7 @@ static void __init tavorevb_init(void)
 
 MACHINE_START(TAVOREVB, "PXA930 Evaluation Board (aka TavorEVB)")
         /* Maintainer: Eric Miao <eric.miao@marvell.com> */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa3xx_map_io,
         .init_irq       = pxa3xx_init_irq,
         .handle_irq       = pxa3xx_handle_irq,
diff --git a/arch/arm/mach-pxa/tavorevb3.c b/arch/arm/mach-pxa/tavorevb3.c
index fd5a8eae0a87..fd569167302a 100644
--- a/arch/arm/mach-pxa/tavorevb3.c
+++ b/arch/arm/mach-pxa/tavorevb3.c
@@ -125,7 +125,7 @@ static void __init evb3_init(void)
 }
 
 MACHINE_START(TAVOREVB3, "PXA950 Evaluation Board (aka TavorEVB3)")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa3xx_map_io,
         .nr_irqs        = TAVOREVB3_NR_IRQS,
         .init_irq       = pxa3xx_init_irq,
diff --git a/arch/arm/mach-pxa/trizeps4.c b/arch/arm/mach-pxa/trizeps4.c
index c0417508f39d..35bbf13724b9 100644
--- a/arch/arm/mach-pxa/trizeps4.c
+++ b/arch/arm/mach-pxa/trizeps4.c
@@ -554,7 +554,7 @@ static void __init trizeps4_map_io(void)
 
 MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
         /* MAINTAINER("Jürgen Schindele") */
-        .boot_params    = TRIZEPS4_SDRAM_BASE + 0x100,
+        .atag_offset    = 0x100,
         .init_machine   = trizeps4_init,
         .map_io         = trizeps4_map_io,
         .init_irq       = pxa27x_init_irq,
@@ -564,7 +564,7 @@ MACHINE_END
 
 MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
         /* MAINTAINER("Jürgen Schindele") */
-        .boot_params    = TRIZEPS4_SDRAM_BASE + 0x100,
+        .atag_offset    = 0x100,
         .init_machine   = trizeps4_init,
         .map_io         = trizeps4_map_io,
         .init_irq       = pxa27x_init_irq,
diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
index d4a3dc74e84a..242ddae332d3 100644
--- a/arch/arm/mach-pxa/viper.c
+++ b/arch/arm/mach-pxa/viper.c
@@ -992,7 +992,7 @@ static void __init viper_map_io(void)
 
 MACHINE_START(VIPER, "Arcom/Eurotech VIPER SBC")
         /* Maintainer: Marc Zyngier <maz@misterjones.org> */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = viper_map_io,
         .init_irq       = viper_init_irq,
         .handle_irq     = pxa25x_handle_irq,
diff --git a/arch/arm/mach-pxa/vpac270.c b/arch/arm/mach-pxa/vpac270.c
index 5f8490ab07cb..a7539a6ed1ff 100644
--- a/arch/arm/mach-pxa/vpac270.c
+++ b/arch/arm/mach-pxa/vpac270.c
@@ -716,7 +716,7 @@ static void __init vpac270_init(void)
 }
 
 MACHINE_START(VPAC270, "Voipac PXA270")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .init_irq       = pxa27x_init_irq,
         .handle_irq     = pxa27x_handle_irq,
diff --git a/arch/arm/mach-pxa/xcep.c b/arch/arm/mach-pxa/xcep.c
index acc600f5e72f..54930cccbe54 100644
--- a/arch/arm/mach-pxa/xcep.c
+++ b/arch/arm/mach-pxa/xcep.c
@@ -180,7 +180,7 @@ static void __init xcep_init(void)
 }
 
 MACHINE_START(XCEP, "Iskratel XCEP")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .init_machine   = xcep_init,
         .map_io         = pxa25x_map_io,
         .init_irq       = pxa25x_init_irq,
diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
index 6c9275a20c91..65fed3753fa2 100644
--- a/arch/arm/mach-pxa/z2.c
+++ b/arch/arm/mach-pxa/z2.c
@@ -718,7 +718,7 @@ static void __init z2_init(void)
 }
 
 MACHINE_START(ZIPIT2, "Zipit Z2")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa27x_map_io,
         .init_irq       = pxa27x_init_irq,
         .handle_irq     = pxa27x_handle_irq,
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
index 99c49bcd9f70..c424e7d85ce3 100644
--- a/arch/arm/mach-pxa/zeus.c
+++ b/arch/arm/mach-pxa/zeus.c
@@ -904,7 +904,7 @@ static void __init zeus_map_io(void)
 
 MACHINE_START(ARCOM_ZEUS, "Arcom/Eurotech ZEUS")
         /* Maintainer: Marc Zyngier <maz@misterjones.org> */
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = zeus_map_io,
         .nr_irqs        = ZEUS_NR_IRQS,
         .init_irq       = zeus_init_irq,
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index 15ec66b3471a..31d496891891 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -422,7 +422,7 @@ static void __init zylonite_init(void)
 }
 
 MACHINE_START(ZYLONITE, "PXA3xx Platform Development Kit (aka Zylonite)")
-        .boot_params    = 0xa0000100,
+        .atag_offset    = 0x100,
         .map_io         = pxa3xx_map_io,
         .nr_irqs        = ZYLONITE_NR_IRQS,
         .init_irq       = pxa3xx_init_irq,
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index 7a4e3b18cb3e..026c66ad7ec2 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -463,7 +463,7 @@ static void __init realview_eb_init(void)
 
 MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-        .boot_params    = PLAT_PHYS_OFFSET + 0x00000100,
+        .atag_offset    = 0x100,
         .fixup          = realview_fixup,
         .map_io         = realview_eb_map_io,
         .init_early     = realview_init_early,
diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c
index ad5671acb66a..7263dea77779 100644
--- a/arch/arm/mach-realview/realview_pb1176.c
+++ b/arch/arm/mach-realview/realview_pb1176.c
@@ -358,7 +358,7 @@ static void __init realview_pb1176_init(void)
 
 MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-        .boot_params    = PLAT_PHYS_OFFSET + 0x00000100,
+        .atag_offset    = 0x100,
         .fixup          = realview_pb1176_fixup,
         .map_io         = realview_pb1176_map_io,
         .init_early     = realview_init_early,
diff --git a/arch/arm/mach-realview/realview_pb11mp.c b/arch/arm/mach-realview/realview_pb11mp.c
index b43644b3685e..671ad6d6ff00 100644
--- a/arch/arm/mach-realview/realview_pb11mp.c
+++ b/arch/arm/mach-realview/realview_pb11mp.c
@@ -360,7 +360,7 @@ static void __init realview_pb11mp_init(void)
 
 MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-        .boot_params    = PLAT_PHYS_OFFSET + 0x00000100,
+        .atag_offset    = 0x100,
         .fixup          = realview_fixup,
         .map_io         = realview_pb11mp_map_io,
         .init_early     = realview_init_early,
diff --git a/arch/arm/mach-realview/realview_pba8.c b/arch/arm/mach-realview/realview_pba8.c
index 763e8f38c15d..cbf22df4ad5b 100644
--- a/arch/arm/mach-realview/realview_pba8.c
+++ b/arch/arm/mach-realview/realview_pba8.c
@@ -310,7 +310,7 @@ static void __init realview_pba8_init(void)
 
 MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-        .boot_params    = PLAT_PHYS_OFFSET + 0x00000100,
+        .atag_offset    = 0x100,
         .fixup          = realview_fixup,
         .map_io         = realview_pba8_map_io,
         .init_early     = realview_init_early,
diff --git a/arch/arm/mach-realview/realview_pbx.c b/arch/arm/mach-realview/realview_pbx.c
index 363b0ab56150..8ec7e52618b4 100644
--- a/arch/arm/mach-realview/realview_pbx.c
+++ b/arch/arm/mach-realview/realview_pbx.c
@@ -393,7 +393,7 @@ static void __init realview_pbx_init(void)
 
 MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-        .boot_params    = PLAT_PHYS_OFFSET + 0x00000100,
+        .atag_offset    = 0x100,
         .fixup          = realview_pbx_fixup,
         .map_io         = realview_pbx_map_io,
         .init_early     = realview_init_early,
diff --git a/arch/arm/mach-rpc/riscpc.c b/arch/arm/mach-rpc/riscpc.c
index 580b3c73d2c7..a9241eb87724 100644
--- a/arch/arm/mach-rpc/riscpc.c
+++ b/arch/arm/mach-rpc/riscpc.c
@@ -218,7 +218,7 @@ extern struct sys_timer ioc_timer;
 
 MACHINE_START(RISCPC, "Acorn-RiscPC")
         /* Maintainer: Russell King */
-        .boot_params    = 0x10000100,
+        .atag_offset    = 0x100,
         .reserve_lp0    = 1,
         .reserve_lp1    = 1,
         .map_io         = rpc_map_io,
diff --git a/arch/arm/mach-s3c2410/mach-amlm5900.c b/arch/arm/mach-s3c2410/mach-amlm5900.c
index dabc141243f3..79838942b0ac 100644
--- a/arch/arm/mach-s3c2410/mach-amlm5900.c
+++ b/arch/arm/mach-s3c2410/mach-amlm5900.c
@@ -236,7 +236,7 @@ static void __init amlm5900_init(void)
 }
 
 MACHINE_START(AML_M5900, "AML_M5900")
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = amlm5900_map_io,
         .init_irq       = s3c24xx_init_irq,
         .init_machine   = amlm5900_init,
diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c
index 1e2d536adda9..a20ae1ad4062 100644
--- a/arch/arm/mach-s3c2410/mach-bast.c
+++ b/arch/arm/mach-s3c2410/mach-bast.c
@@ -657,7 +657,7 @@ static void __init bast_init(void)
 
 MACHINE_START(BAST, "Simtec-BAST")
         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = bast_map_io,
         .init_irq       = s3c24xx_init_irq,
         .init_machine   = bast_init,
diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c
index 2a2fa0620133..556c535829f0 100644
--- a/arch/arm/mach-s3c2410/mach-h1940.c
+++ b/arch/arm/mach-s3c2410/mach-h1940.c
@@ -744,7 +744,7 @@ static void __init h1940_init(void)
 
 MACHINE_START(H1940, "IPAQ-H1940")
         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = h1940_map_io,
         .reserve        = h1940_reserve,
         .init_irq       = h1940_init_irq,
diff --git a/arch/arm/mach-s3c2410/mach-n30.c b/arch/arm/mach-s3c2410/mach-n30.c
index 079dcaa602d3..1dc3e3234417 100644
--- a/arch/arm/mach-s3c2410/mach-n30.c
+++ b/arch/arm/mach-s3c2410/mach-n30.c
@@ -586,7 +586,7 @@ MACHINE_START(N30, "Acer-N30")
         /* Maintainer: Christer Weinigel <christer@weinigel.se>,
                                 Ben Dooks <ben-linux@fluff.org>
         */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .timer          = &s3c24xx_timer,
         .init_machine   = n30_init,
         .init_irq       = s3c24xx_init_irq,
@@ -596,7 +596,7 @@ MACHINE_END
 MACHINE_START(N35, "Acer-N35")
         /* Maintainer: Christer Weinigel <christer@weinigel.se>
         */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .timer          = &s3c24xx_timer,
         .init_machine   = n30_init,
         .init_irq       = s3c24xx_init_irq,
diff --git a/arch/arm/mach-s3c2410/mach-otom.c b/arch/arm/mach-s3c2410/mach-otom.c
index 0aa16cd5acbc..f03f3fd9cec9 100644
--- a/arch/arm/mach-s3c2410/mach-otom.c
+++ b/arch/arm/mach-s3c2410/mach-otom.c
@@ -116,7 +116,7 @@ static void __init otom11_init(void)
 
 MACHINE_START(OTOM, "Nex Vision - Otom 1.1")
         /* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = otom11_map_io,
         .init_machine   = otom11_init,
         .init_irq       = s3c24xx_init_irq,
diff --git a/arch/arm/mach-s3c2410/mach-qt2410.c b/arch/arm/mach-s3c2410/mach-qt2410.c
index f44f77531b1e..367d376deb96 100644
--- a/arch/arm/mach-s3c2410/mach-qt2410.c
+++ b/arch/arm/mach-s3c2410/mach-qt2410.c
@@ -344,7 +344,7 @@ static void __init qt2410_machine_init(void)
 }
 
 MACHINE_START(QT2410, "QT2410")
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = qt2410_map_io,
         .init_irq       = s3c24xx_init_irq,
         .init_machine   = qt2410_machine_init,
diff --git a/arch/arm/mach-s3c2410/mach-smdk2410.c b/arch/arm/mach-s3c2410/mach-smdk2410.c
index e17f03387aba..99c9dfdb71c7 100644
--- a/arch/arm/mach-s3c2410/mach-smdk2410.c
+++ b/arch/arm/mach-s3c2410/mach-smdk2410.c
@@ -111,7 +111,7 @@ static void __init smdk2410_init(void)
 MACHINE_START(SMDK2410, "SMDK2410") /* @TODO: request a new identifier and switch
                                     * to SMDK2410 */
         /* Maintainer: Jonas Dietsche */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = smdk2410_map_io,
         .init_irq       = s3c24xx_init_irq,
         .init_machine   = smdk2410_init,
diff --git a/arch/arm/mach-s3c2410/mach-tct_hammer.c b/arch/arm/mach-s3c2410/mach-tct_hammer.c
index 43c2b831b9e8..e0d0b6fb2800 100644
--- a/arch/arm/mach-s3c2410/mach-tct_hammer.c
+++ b/arch/arm/mach-s3c2410/mach-tct_hammer.c
@@ -146,7 +146,7 @@ static void __init tct_hammer_init(void)
 }
 
 MACHINE_START(TCT_HAMMER, "TCT_HAMMER")
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = tct_hammer_map_io,
         .init_irq       = s3c24xx_init_irq,
         .init_machine   = tct_hammer_init,
diff --git a/arch/arm/mach-s3c2410/mach-vr1000.c b/arch/arm/mach-s3c2410/mach-vr1000.c
index 6ccce5a761b4..df47e8e90065 100644
--- a/arch/arm/mach-s3c2410/mach-vr1000.c
+++ b/arch/arm/mach-s3c2410/mach-vr1000.c
@@ -400,7 +400,7 @@ static void __init vr1000_init(void)
 
 MACHINE_START(VR1000, "Thorcom-VR1000")
         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = vr1000_map_io,
         .init_machine   = vr1000_init,
         .init_irq       = s3c24xx_init_irq,
diff --git a/arch/arm/mach-s3c2412/mach-jive.c b/arch/arm/mach-s3c2412/mach-jive.c
index 5eeb47580b0c..286ef1738c61 100644
--- a/arch/arm/mach-s3c2412/mach-jive.c
+++ b/arch/arm/mach-s3c2412/mach-jive.c
@@ -655,7 +655,7 @@ static void __init jive_machine_init(void)
 
 MACHINE_START(JIVE, "JIVE")
         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
 
         .init_irq       = s3c24xx_init_irq,
         .map_io         = jive_map_io,
diff --git a/arch/arm/mach-s3c2412/mach-smdk2413.c b/arch/arm/mach-s3c2412/mach-smdk2413.c
index 834cfb61bcfe..d6325ede9f29 100644
--- a/arch/arm/mach-s3c2412/mach-smdk2413.c
+++ b/arch/arm/mach-s3c2412/mach-smdk2413.c
@@ -128,7 +128,7 @@ static void __init smdk2413_machine_init(void)
 
 MACHINE_START(S3C2413, "S3C2413")
         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
 
         .fixup          = smdk2413_fixup,
         .init_irq       = s3c24xx_init_irq,
@@ -139,7 +139,7 @@ MACHINE_END
 
 MACHINE_START(SMDK2412, "SMDK2412")
         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
 
         .fixup          = smdk2413_fixup,
         .init_irq       = s3c24xx_init_irq,
@@ -150,7 +150,7 @@ MACHINE_END
 
 MACHINE_START(SMDK2413, "SMDK2413")
         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
 
         .fixup          = smdk2413_fixup,
         .init_irq       = s3c24xx_init_irq,
diff --git a/arch/arm/mach-s3c2412/mach-vstms.c b/arch/arm/mach-s3c2412/mach-vstms.c
index 83544ebe20ac..5955c15018b4 100644
--- a/arch/arm/mach-s3c2412/mach-vstms.c
+++ b/arch/arm/mach-s3c2412/mach-vstms.c
@@ -156,7 +156,7 @@ static void __init vstms_init(void)
 }
 
 MACHINE_START(VSTMS, "VSTMS")
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
 
         .fixup          = vstms_fixup,
         .init_irq       = s3c24xx_init_irq,
diff --git a/arch/arm/mach-s3c2416/mach-smdk2416.c b/arch/arm/mach-s3c2416/mach-smdk2416.c
index ac27ebb31c9b..a9eee531ca76 100644
--- a/arch/arm/mach-s3c2416/mach-smdk2416.c
+++ b/arch/arm/mach-s3c2416/mach-smdk2416.c
@@ -245,7 +245,7 @@ static void __init smdk2416_machine_init(void)
 
 MACHINE_START(SMDK2416, "SMDK2416")
         /* Maintainer: Yauhen Kharuzhy <jekhor@gmail.com> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
 
         .init_irq       = s3c24xx_init_irq,
         .map_io         = smdk2416_map_io,
diff --git a/arch/arm/mach-s3c2440/mach-anubis.c b/arch/arm/mach-s3c2440/mach-anubis.c
index d7086788b1ff..74f92fc3fd04 100644
--- a/arch/arm/mach-s3c2440/mach-anubis.c
+++ b/arch/arm/mach-s3c2440/mach-anubis.c
@@ -498,7 +498,7 @@ static void __init anubis_init(void)
 
 MACHINE_START(ANUBIS, "Simtec-Anubis")
         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = anubis_map_io,
         .init_machine   = anubis_init,
         .init_irq       = s3c24xx_init_irq,
diff --git a/arch/arm/mach-s3c2440/mach-at2440evb.c b/arch/arm/mach-s3c2440/mach-at2440evb.c
index 6c98b789b8c6..38887ee0c784 100644
--- a/arch/arm/mach-s3c2440/mach-at2440evb.c
+++ b/arch/arm/mach-s3c2440/mach-at2440evb.c
@@ -233,7 +233,7 @@ static void __init at2440evb_init(void)
 
 
 MACHINE_START(AT2440EVB, "AT2440EVB")
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = at2440evb_map_io,
         .init_machine   = at2440evb_init,
         .init_irq       = s3c24xx_init_irq,
diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
index c10ddf4ed7f1..de1e0ff46cec 100644
--- a/arch/arm/mach-s3c2440/mach-gta02.c
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
@@ -595,7 +595,7 @@ static void __init gta02_machine_init(void)
 
 MACHINE_START(NEO1973_GTA02, "GTA02")
         /* Maintainer: Nelson Castillo <arhuaco@freaks-unidos.net> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = gta02_map_io,
         .init_irq       = s3c24xx_init_irq,
         .init_machine   = gta02_machine_init,
diff --git a/arch/arm/mach-s3c2440/mach-mini2440.c b/arch/arm/mach-s3c2440/mach-mini2440.c
index fc2dc0b3d4fe..91fe0b4c95f1 100644
--- a/arch/arm/mach-s3c2440/mach-mini2440.c
+++ b/arch/arm/mach-s3c2440/mach-mini2440.c
@@ -676,7 +676,7 @@ static void __init mini2440_init(void)
 
 MACHINE_START(MINI2440, "MINI2440")
         /* Maintainer: Michel Pollet <buserror@gmail.com> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = mini2440_map_io,
         .init_machine   = mini2440_init,
         .init_irq       = s3c24xx_init_irq,
diff --git a/arch/arm/mach-s3c2440/mach-nexcoder.c b/arch/arm/mach-s3c2440/mach-nexcoder.c
index 37dd306fb7dc..61c0bf148165 100644
--- a/arch/arm/mach-s3c2440/mach-nexcoder.c
+++ b/arch/arm/mach-s3c2440/mach-nexcoder.c
@@ -151,7 +151,7 @@ static void __init nexcoder_init(void)
 
 MACHINE_START(NEXCODER_2440, "NexVision - Nexcoder 2440")
         /* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = nexcoder_map_io,
         .init_machine   = nexcoder_init,
         .init_irq       = s3c24xx_init_irq,
diff --git a/arch/arm/mach-s3c2440/mach-osiris.c b/arch/arm/mach-s3c2440/mach-osiris.c
index d88536393310..dc142ebf8cba 100644
--- a/arch/arm/mach-s3c2440/mach-osiris.c
+++ b/arch/arm/mach-s3c2440/mach-osiris.c
@@ -447,7 +447,7 @@ static void __init osiris_init(void)
 
 MACHINE_START(OSIRIS, "Simtec-OSIRIS")
         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = osiris_map_io,
         .init_irq       = s3c24xx_init_irq,
         .init_machine   = osiris_init,
diff --git a/arch/arm/mach-s3c2440/mach-rx1950.c b/arch/arm/mach-s3c2440/mach-rx1950.c
index 27ea95096fe1..684dbb3567f5 100644
--- a/arch/arm/mach-s3c2440/mach-rx1950.c
+++ b/arch/arm/mach-s3c2440/mach-rx1950.c
@@ -825,7 +825,7 @@ static void __init rx1950_reserve(void)
 
 MACHINE_START(RX1950, "HP iPAQ RX1950")
     /* Maintainers: Vasily Khoruzhick */
-        .boot_params = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset = 0x100,
         .map_io = rx1950_map_io,
         .reserve        = rx1950_reserve,
         .init_irq = s3c24xx_init_irq,
diff --git a/arch/arm/mach-s3c2440/mach-rx3715.c b/arch/arm/mach-s3c2440/mach-rx3715.c
index 1472b1a5b2fb..e19499c2f909 100644
--- a/arch/arm/mach-s3c2440/mach-rx3715.c
+++ b/arch/arm/mach-s3c2440/mach-rx3715.c
@@ -218,7 +218,7 @@ static void __init rx3715_init_machine(void)
 
 MACHINE_START(RX3715, "IPAQ-RX3715")
         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
         .map_io         = rx3715_map_io,
         .reserve        = rx3715_reserve,
         .init_irq       = rx3715_init_irq,
diff --git a/arch/arm/mach-s3c2440/mach-smdk2440.c b/arch/arm/mach-s3c2440/mach-smdk2440.c
index eedfe0f11643..36eeb4197a84 100644
--- a/arch/arm/mach-s3c2440/mach-smdk2440.c
+++ b/arch/arm/mach-s3c2440/mach-smdk2440.c
@@ -175,7 +175,7 @@ static void __init smdk2440_machine_init(void)
 
 MACHINE_START(S3C2440, "SMDK2440")
         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
 
         .init_irq       = s3c24xx_init_irq,
         .map_io         = smdk2440_map_io,
diff --git a/arch/arm/mach-s3c2443/mach-smdk2443.c b/arch/arm/mach-s3c2443/mach-smdk2443.c
index 514275e43ca0..bec107e00441 100644
--- a/arch/arm/mach-s3c2443/mach-smdk2443.c
+++ b/arch/arm/mach-s3c2443/mach-smdk2443.c
@@ -139,7 +139,7 @@ static void __init smdk2443_machine_init(void)
 
 MACHINE_START(SMDK2443, "SMDK2443")
         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
-        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .atag_offset    = 0x100,
 
         .init_irq       = s3c24xx_init_irq,
         .map_io         = smdk2443_map_io,
diff --git a/arch/arm/mach-s3c64xx/cpu.c b/arch/arm/mach-s3c64xx/cpu.c
index 374e45e566b8..8dc05763a7eb 100644
--- a/arch/arm/mach-s3c64xx/cpu.c
+++ b/arch/arm/mach-s3c64xx/cpu.c
@@ -20,6 +20,7 @@
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/dma-mapping.h>
 
 #include <mach/hardware.h>
 #include <mach/map.h>
@@ -145,6 +146,7 @@ void __init s3c64xx_init_io(struct map_desc *mach_desc, int size)
         /* initialise the io descriptors we need for initialisation */
         iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));
         iotable_init(mach_desc, size);
+        init_consistent_dma_size(SZ_8M);
 
         idcode = __raw_readl(S3C_VA_SYS + 0x118);
         if (!idcode) {
diff --git a/arch/arm/mach-s3c64xx/include/mach/memory.h b/arch/arm/mach-s3c64xx/include/mach/memory.h
index 4760cdae1eb6..b704669f95ff 100644
--- a/arch/arm/mach-s3c64xx/include/mach/memory.h
+++ b/arch/arm/mach-s3c64xx/include/mach/memory.h
@@ -15,6 +15,4 @@
 
 #define PLAT_PHYS_OFFSET     UL(0x50000000)
 
-#define CONSISTENT_DMA_SIZE     SZ_8M
-
 #endif
diff --git a/arch/arm/mach-s3c64xx/mach-anw6410.c b/arch/arm/mach-s3c64xx/mach-anw6410.c
index cb8864327ac4..d164a282bfb4 100644
--- a/arch/arm/mach-s3c64xx/mach-anw6410.c
+++ b/arch/arm/mach-s3c64xx/mach-anw6410.c
@@ -233,7 +233,7 @@ static void __init anw6410_machine_init(void)
 
 MACHINE_START(ANW6410, "A&W6410")
         /* Maintainer: Kwangwoo Lee <kwangwoo.lee@gmail.com> */
-        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
 
         .init_irq       = s3c6410_init_irq,
         .map_io         = anw6410_map_io,
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index af0c2fe1ea37..4c76e08423fb 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -766,7 +766,7 @@ static void __init crag6410_machine_init(void)
 
 MACHINE_START(WLF_CRAGG_6410, "Wolfson Cragganmore 6410")
         /* Maintainer: Mark Brown <broonie@opensource.wolfsonmicro.com> */
-        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s3c6410_init_irq,
         .map_io         = crag6410_map_io,
         .init_machine   = crag6410_machine_init,
diff --git a/arch/arm/mach-s3c64xx/mach-hmt.c b/arch/arm/mach-s3c64xx/mach-hmt.c
index b3d93cc8dde0..19a0887e1c1e 100644
--- a/arch/arm/mach-s3c64xx/mach-hmt.c
+++ b/arch/arm/mach-s3c64xx/mach-hmt.c
@@ -265,7 +265,7 @@ static void __init hmt_machine_init(void)
 
 MACHINE_START(HMT, "Airgoo-HMT")
         /* Maintainer: Peter Korsgaard <jacmet@sunsite.dk> */
-        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s3c6410_init_irq,
         .map_io         = hmt_map_io,
         .init_machine   = hmt_machine_init,
diff --git a/arch/arm/mach-s3c64xx/mach-mini6410.c b/arch/arm/mach-s3c64xx/mach-mini6410.c
index 527f49bd1b57..e91f63f7a490 100644
--- a/arch/arm/mach-s3c64xx/mach-mini6410.c
+++ b/arch/arm/mach-s3c64xx/mach-mini6410.c
@@ -349,7 +349,7 @@ static void __init mini6410_machine_init(void)
 
 MACHINE_START(MINI6410, "MINI6410")
         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
-        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s3c6410_init_irq,
         .map_io         = mini6410_map_io,
         .init_machine   = mini6410_machine_init,
diff --git a/arch/arm/mach-s3c64xx/mach-ncp.c b/arch/arm/mach-s3c64xx/mach-ncp.c
index 01c6857c5b63..c30f2e5e0d85 100644
--- a/arch/arm/mach-s3c64xx/mach-ncp.c
+++ b/arch/arm/mach-s3c64xx/mach-ncp.c
@@ -97,7 +97,7 @@ static void __init ncp_machine_init(void)
 
 MACHINE_START(NCP, "NCP")
         /* Maintainer: Samsung Electronics */
-        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s3c6410_init_irq,
         .map_io         = ncp_map_io,
         .init_machine   = ncp_machine_init,
diff --git a/arch/arm/mach-s3c64xx/mach-real6410.c b/arch/arm/mach-s3c64xx/mach-real6410.c
index 95b04b1729e3..10870cb5b39e 100644
--- a/arch/arm/mach-s3c64xx/mach-real6410.c
+++ b/arch/arm/mach-s3c64xx/mach-real6410.c
@@ -329,7 +329,7 @@ static void __init real6410_machine_init(void)
 
 MACHINE_START(REAL6410, "REAL6410")
         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
-        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
 
         .init_irq       = s3c6410_init_irq,
         .map_io         = real6410_map_io,
diff --git a/arch/arm/mach-s3c64xx/mach-smartq5.c b/arch/arm/mach-s3c64xx/mach-smartq5.c
index 342e8dfddf8b..cbb57ded3d95 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq5.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq5.c
@@ -146,7 +146,7 @@ static void __init smartq5_machine_init(void)
 
 MACHINE_START(SMARTQ5, "SmartQ 5")
         /* Maintainer: Maurus Cuelenaere <mcuelenaere AT gmail DOT com> */
-        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s3c6410_init_irq,
         .map_io         = smartq_map_io,
         .init_machine   = smartq5_machine_init,
diff --git a/arch/arm/mach-s3c64xx/mach-smartq7.c b/arch/arm/mach-s3c64xx/mach-smartq7.c
index 57963977da8e..04f914b85fdf 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq7.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq7.c
@@ -162,7 +162,7 @@ static void __init smartq7_machine_init(void)
 
 MACHINE_START(SMARTQ7, "SmartQ 7")
         /* Maintainer: Maurus Cuelenaere <mcuelenaere AT gmail DOT com> */
-        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s3c6410_init_irq,
         .map_io         = smartq_map_io,
         .init_machine   = smartq7_machine_init,
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6400.c b/arch/arm/mach-s3c64xx/mach-smdk6400.c
index 3cca642f1e6d..6fd5e95f8f75 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6400.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6400.c
@@ -85,7 +85,7 @@ static void __init smdk6400_machine_init(void)
 
 MACHINE_START(SMDK6400, "SMDK6400")
         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
-        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
 
         .init_irq       = s3c6400_init_irq,
         .map_io         = smdk6400_map_io,
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index ecbea92bf83b..dcf2d73b4783 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -742,7 +742,7 @@ static void __init smdk6410_machine_init(void)
 
 MACHINE_START(SMDK6410, "SMDK6410")
         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
-        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
 
         .init_irq       = s3c6410_init_irq,
         .map_io         = smdk6410_map_io,
diff --git a/arch/arm/mach-s5p64x0/cpu.c b/arch/arm/mach-s5p64x0/cpu.c
index a5c00952ea35..8a938542c54d 100644
--- a/arch/arm/mach-s5p64x0/cpu.c
+++ b/arch/arm/mach-s5p64x0/cpu.c
@@ -20,6 +20,7 @@
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
 #include <linux/sched.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -111,6 +112,7 @@ void __init s5p6440_map_io(void)
 
         iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc));
         iotable_init(s5p6440_iodesc, ARRAY_SIZE(s5p6440_iodesc));
+        init_consistent_dma_size(SZ_8M);
 }
 
 void __init s5p6450_map_io(void)
@@ -120,6 +122,7 @@ void __init s5p6450_map_io(void)
 
         iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc));
         iotable_init(s5p6450_iodesc, ARRAY_SIZE(s5p6450_iodesc));
+        init_consistent_dma_size(SZ_8M);
 }
 
 /*
diff --git a/arch/arm/mach-s5p64x0/include/mach/memory.h b/arch/arm/mach-s5p64x0/include/mach/memory.h
index 365a6eb4b88f..b14cbc3f521b 100644
--- a/arch/arm/mach-s5p64x0/include/mach/memory.h
+++ b/arch/arm/mach-s5p64x0/include/mach/memory.h
@@ -14,6 +14,5 @@
 #define __ASM_ARCH_MEMORY_H __FILE__
 
 #define PLAT_PHYS_OFFSET                UL(0x20000000)
-#define CONSISTENT_DMA_SIZE     SZ_8M
 
 #endif /* __ASM_ARCH_MEMORY_H */
diff --git a/arch/arm/mach-s5p64x0/mach-smdk6440.c b/arch/arm/mach-s5p64x0/mach-smdk6440.c
index 346f8dfa6f35..3b84e9bfd073 100644
--- a/arch/arm/mach-s5p64x0/mach-smdk6440.c
+++ b/arch/arm/mach-s5p64x0/mach-smdk6440.c
@@ -171,7 +171,7 @@ static void __init smdk6440_machine_init(void)
 
 MACHINE_START(SMDK6440, "SMDK6440")
         /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
-        .boot_params    = S5P64X0_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
 
         .init_irq       = s5p6440_init_irq,
         .map_io         = smdk6440_map_io,
diff --git a/arch/arm/mach-s5p64x0/mach-smdk6450.c b/arch/arm/mach-s5p64x0/mach-smdk6450.c
index 33f2adf8f3fe..d99d29b5558e 100644
--- a/arch/arm/mach-s5p64x0/mach-smdk6450.c
+++ b/arch/arm/mach-s5p64x0/mach-smdk6450.c
@@ -190,7 +190,7 @@ static void __init smdk6450_machine_init(void)
 
 MACHINE_START(SMDK6450, "SMDK6450")
         /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
-        .boot_params    = S5P64X0_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
 
         .init_irq       = s5p6450_init_irq,
         .map_io         = smdk6450_map_io,
diff --git a/arch/arm/mach-s5pc100/mach-smdkc100.c b/arch/arm/mach-s5pc100/mach-smdkc100.c
index 227d8908aab6..688f45b7cd00 100644
--- a/arch/arm/mach-s5pc100/mach-smdkc100.c
+++ b/arch/arm/mach-s5pc100/mach-smdkc100.c
@@ -254,7 +254,7 @@ static void __init smdkc100_machine_init(void)
 
 MACHINE_START(SMDKC100, "SMDKC100")
         /* Maintainer: Byungho Min <bhmin@samsung.com> */
-        .boot_params    = S5P_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s5pc100_init_irq,
         .map_io         = smdkc100_map_io,
         .init_machine   = smdkc100_machine_init,
diff --git a/arch/arm/mach-s5pv210/cpu.c b/arch/arm/mach-s5pv210/cpu.c
index 79907ec78d43..91145720822c 100644
--- a/arch/arm/mach-s5pv210/cpu.c
+++ b/arch/arm/mach-s5pv210/cpu.c
@@ -20,6 +20,7 @@
 #include <linux/sysdev.h>
 #include <linux/platform_device.h>
 #include <linux/sched.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -119,6 +120,7 @@ static void s5pv210_sw_reset(void)
 void __init s5pv210_map_io(void)
 {
         iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc));
+        init_consistent_dma_size(14 << 20);
 
         /* initialise device information early */
         s5pv210_default_sdhci0();
diff --git a/arch/arm/mach-s5pv210/include/mach/memory.h b/arch/arm/mach-s5pv210/include/mach/memory.h
index 7b5fcf0da0c4..2d3cfa221d5f 100644
--- a/arch/arm/mach-s5pv210/include/mach/memory.h
+++ b/arch/arm/mach-s5pv210/include/mach/memory.h
@@ -14,7 +14,6 @@
 #define __ASM_ARCH_MEMORY_H
 
 #define PLAT_PHYS_OFFSET                UL(0x20000000)
-#define CONSISTENT_DMA_SIZE     (SZ_8M + SZ_4M + SZ_2M)
 
 /*
  * Sparsemem support
diff --git a/arch/arm/mach-s5pv210/mach-aquila.c b/arch/arm/mach-s5pv210/mach-aquila.c
index 509627f25111..5811a96125f0 100644
--- a/arch/arm/mach-s5pv210/mach-aquila.c
+++ b/arch/arm/mach-s5pv210/mach-aquila.c
@@ -678,7 +678,7 @@ MACHINE_START(AQUILA, "Aquila")
         /* Maintainers:
            Marek Szyprowski <m.szyprowski@samsung.com>
            Kyungmin Park <kyungmin.park@samsung.com> */
-        .boot_params    = S5P_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s5pv210_init_irq,
         .map_io         = aquila_map_io,
         .init_machine   = aquila_machine_init,
diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c
index 85c2d51a0956..061cc7e4f48c 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -897,7 +897,7 @@ static void __init goni_machine_init(void)
 
 MACHINE_START(GONI, "GONI")
         /* Maintainers: Kyungmin Park <kyungmin.park@samsung.com> */
-        .boot_params    = S5P_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s5pv210_init_irq,
         .map_io         = goni_map_io,
         .init_machine   = goni_machine_init,
diff --git a/arch/arm/mach-s5pv210/mach-smdkc110.c b/arch/arm/mach-s5pv210/mach-smdkc110.c
index 6c412c8ceccc..f7266bb0cac8 100644
--- a/arch/arm/mach-s5pv210/mach-smdkc110.c
+++ b/arch/arm/mach-s5pv210/mach-smdkc110.c
@@ -136,7 +136,7 @@ static void __init smdkc110_machine_init(void)
 
 MACHINE_START(SMDKC110, "SMDKC110")
         /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
-        .boot_params    = S5P_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s5pv210_init_irq,
         .map_io         = smdkc110_map_io,
         .init_machine   = smdkc110_machine_init,
diff --git a/arch/arm/mach-s5pv210/mach-smdkv210.c b/arch/arm/mach-s5pv210/mach-smdkv210.c
index 5e011fc6720d..e73e3b6d41b5 100644
--- a/arch/arm/mach-s5pv210/mach-smdkv210.c
+++ b/arch/arm/mach-s5pv210/mach-smdkv210.c
@@ -319,7 +319,7 @@ static void __init smdkv210_machine_init(void)
 
 MACHINE_START(SMDKV210, "SMDKV210")
         /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
-        .boot_params    = S5P_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s5pv210_init_irq,
         .map_io         = smdkv210_map_io,
         .init_machine   = smdkv210_machine_init,
diff --git a/arch/arm/mach-s5pv210/mach-torbreck.c b/arch/arm/mach-s5pv210/mach-torbreck.c
index 925fc0dc6252..97cc066c5369 100644
--- a/arch/arm/mach-s5pv210/mach-torbreck.c
+++ b/arch/arm/mach-s5pv210/mach-torbreck.c
@@ -125,7 +125,7 @@ static void __init torbreck_machine_init(void)
 
 MACHINE_START(TORBRECK, "TORBRECK")
         /* Maintainer: Hyunchul Ko <ghcstop@gmail.com> */
-        .boot_params    = S5P_PA_SDRAM + 0x100,
+        .atag_offset    = 0x100,
         .init_irq       = s5pv210_init_irq,
         .map_io         = torbreck_map_io,
         .init_machine   = torbreck_machine_init,
diff --git a/arch/arm/mach-sa1100/assabet.c b/arch/arm/mach-sa1100/assabet.c
index 26257df19b63..d40da5f1f37b 100644
--- a/arch/arm/mach-sa1100/assabet.c
+++ b/arch/arm/mach-sa1100/assabet.c
@@ -447,7 +447,7 @@ static void __init assabet_map_io(void)
 
 
 MACHINE_START(ASSABET, "Intel-Assabet")
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .fixup          = fixup_assabet,
         .map_io         = assabet_map_io,
         .init_irq       = sa1100_init_irq,
diff --git a/arch/arm/mach-sa1100/badge4.c b/arch/arm/mach-sa1100/badge4.c
index b4311b0a4395..bda83e1ab078 100644
--- a/arch/arm/mach-sa1100/badge4.c
+++ b/arch/arm/mach-sa1100/badge4.c
@@ -302,7 +302,7 @@ static void __init badge4_map_io(void)
 }
 
 MACHINE_START(BADGE4, "Hewlett-Packard Laboratories BadgePAD 4")
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .map_io         = badge4_map_io,
         .init_irq       = sa1100_init_irq,
         .timer          = &sa1100_timer,
diff --git a/arch/arm/mach-sa1100/h3100.c b/arch/arm/mach-sa1100/h3100.c
index 03d7376cf8a0..b30733a2b82e 100644
--- a/arch/arm/mach-sa1100/h3100.c
+++ b/arch/arm/mach-sa1100/h3100.c
@@ -84,7 +84,7 @@ static void __init h3100_mach_init(void)
 }
 
 MACHINE_START(H3100, "Compaq iPAQ H3100")
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .map_io         = h3100_map_io,
         .init_irq       = sa1100_init_irq,
         .timer          = &sa1100_timer,
diff --git a/arch/arm/mach-sa1100/h3600.c b/arch/arm/mach-sa1100/h3600.c
index 965f64a836f8..6fd324d92389 100644
--- a/arch/arm/mach-sa1100/h3600.c
+++ b/arch/arm/mach-sa1100/h3600.c
@@ -125,7 +125,7 @@ static void __init h3600_mach_init(void)
 }
 
 MACHINE_START(H3600, "Compaq iPAQ H3600")
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .map_io         = h3600_map_io,
         .init_irq       = sa1100_init_irq,
         .timer          = &sa1100_timer,
diff --git a/arch/arm/mach-sa1100/hackkit.c b/arch/arm/mach-sa1100/hackkit.c
index db5e434a17db..30f4a551b8e5 100644
--- a/arch/arm/mach-sa1100/hackkit.c
+++ b/arch/arm/mach-sa1100/hackkit.c
@@ -195,7 +195,7 @@ static void __init hackkit_init(void)
  */
 
 MACHINE_START(HACKKIT, "HackKit Cpu Board")
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .map_io         = hackkit_map_io,
         .init_irq       = sa1100_init_irq,
         .timer          = &sa1100_timer,
diff --git a/arch/arm/mach-sa1100/jornada720.c b/arch/arm/mach-sa1100/jornada720.c
index 176c066aec7e..0bb520d48ed0 100644
--- a/arch/arm/mach-sa1100/jornada720.c
+++ b/arch/arm/mach-sa1100/jornada720.c
@@ -364,7 +364,7 @@ static void __init jornada720_mach_init(void)
 
 MACHINE_START(JORNADA720, "HP Jornada 720")
         /* Maintainer: Kristoffer Ericson <Kristoffer.Ericson@gmail.com> */
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .map_io         = jornada720_map_io,
         .init_irq       = sa1100_init_irq,
         .timer          = &sa1100_timer,
diff --git a/arch/arm/mach-sa1100/lart.c b/arch/arm/mach-sa1100/lart.c
index 7b9556b59057..5bc59d0947ba 100644
--- a/arch/arm/mach-sa1100/lart.c
+++ b/arch/arm/mach-sa1100/lart.c
@@ -61,7 +61,7 @@ static void __init lart_map_io(void)
 }
 
 MACHINE_START(LART, "LART")
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .map_io         = lart_map_io,
         .init_irq       = sa1100_init_irq,
         .init_machine   = lart_init,
diff --git a/arch/arm/mach-sa1100/nanoengine.c b/arch/arm/mach-sa1100/nanoengine.c
index 72087f0658b7..032f3881d145 100644
--- a/arch/arm/mach-sa1100/nanoengine.c
+++ b/arch/arm/mach-sa1100/nanoengine.c
@@ -111,7 +111,7 @@ static void __init nanoengine_init(void)
 }
 
 MACHINE_START(NANOENGINE, "BSE nanoEngine")
-        .boot_params    = 0xc0000000,
+        .atag_offset    = 0x100,
         .map_io         = nanoengine_map_io,
         .init_irq       = sa1100_init_irq,
         .timer          = &sa1100_timer,
diff --git a/arch/arm/mach-sa1100/shannon.c b/arch/arm/mach-sa1100/shannon.c
index 7917b2405579..1cccbf5b9e9a 100644
--- a/arch/arm/mach-sa1100/shannon.c
+++ b/arch/arm/mach-sa1100/shannon.c
@@ -82,7 +82,7 @@ static void __init shannon_map_io(void)
 }
 
 MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .map_io         = shannon_map_io,
         .init_irq       = sa1100_init_irq,
         .timer          = &sa1100_timer,
diff --git a/arch/arm/mach-sa1100/simpad.c b/arch/arm/mach-sa1100/simpad.c
index cfb76077bd25..a1c2427655da 100644
--- a/arch/arm/mach-sa1100/simpad.c
+++ b/arch/arm/mach-sa1100/simpad.c
@@ -229,7 +229,7 @@ arch_initcall(simpad_init);
 
 MACHINE_START(SIMPAD, "Simpad")
         /* Maintainer: Holger Freyther */
-        .boot_params    = 0xc0000100,
+        .atag_offset    = 0x100,
         .map_io         = simpad_map_io,
         .init_irq       = sa1100_init_irq,
         .timer          = &sa1100_timer,
diff --git a/arch/arm/mach-shark/core.c b/arch/arm/mach-shark/core.c
index ac2873c8014b..feda3ca7fc95 100644
--- a/arch/arm/mach-shark/core.c
+++ b/arch/arm/mach-shark/core.c
@@ -152,7 +152,7 @@ static struct sys_timer shark_timer = {
 
 MACHINE_START(SHARK, "Shark")
         /* Maintainer: Alexander Schulz */
-        .boot_params    = 0x08003000,
+        .atag_offset    = 0x3000,
         .map_io         = shark_map_io,
         .init_irq       = shark_init_irq,
         .timer          = &shark_timer,
diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c
index cdfdd624d21d..5fde49da399a 100644
--- a/arch/arm/mach-shmobile/board-ag5evm.c
+++ b/arch/arm/mach-shmobile/board-ag5evm.c
@@ -37,6 +37,7 @@
 #include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mfd/tmio.h>
 #include <linux/sh_clk.h>
+#include <linux/dma-mapping.h>
 #include <video/sh_mobile_lcdc.h>
 #include <video/sh_mipi_dsi.h>
 #include <sound/sh_fsi.h>
@@ -447,6 +448,8 @@ static struct map_desc ag5evm_io_desc[] __initdata = {
 static void __init ag5evm_map_io(void)
 {
         iotable_init(ag5evm_io_desc, ARRAY_SIZE(ag5evm_io_desc));
+        /* DMA memory at 0xf6000000 - 0xffdfffff */
+        init_consistent_dma_size(158 << 20);
 
         /* setup early devices and console here as well */
         sh73a0_add_early_devices();
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index 523f608eb8cf..b622d8d3ab72 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -42,6 +42,7 @@
 #include <linux/leds.h>
 #include <linux/input/sh_keysc.h>
 #include <linux/usb/r8a66597.h>
+#include <linux/dma-mapping.h>
 
 #include <media/sh_mobile_ceu.h>
 #include <media/sh_mobile_csi2.h>
@@ -1170,6 +1171,8 @@ static struct map_desc ap4evb_io_desc[] __initdata = {
 static void __init ap4evb_map_io(void)
 {
         iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc));
+        /* DMA memory at 0xf6000000 - 0xffdfffff */
+        init_consistent_dma_size(158 << 20);
 
         /* setup early devices and console here as well */
         sh7372_add_early_devices();
diff --git a/arch/arm/mach-shmobile/board-g3evm.c b/arch/arm/mach-shmobile/board-g3evm.c
index ef4613b993a2..8b620bf06221 100644
--- a/arch/arm/mach-shmobile/board-g3evm.c
+++ b/arch/arm/mach-shmobile/board-g3evm.c
@@ -32,6 +32,7 @@
 #include <linux/gpio.h>
 #include <linux/input.h>
 #include <linux/input/sh_keysc.h>
+#include <linux/dma-mapping.h>
 #include <mach/sh7367.h>
 #include <mach/common.h>
 #include <asm/mach-types.h>
@@ -260,6 +261,8 @@ static struct map_desc g3evm_io_desc[] __initdata = {
 static void __init g3evm_map_io(void)
 {
         iotable_init(g3evm_io_desc, ARRAY_SIZE(g3evm_io_desc));
+        /* DMA memory at 0xf6000000 - 0xffdfffff */
+        init_consistent_dma_size(158 << 20);
 
         /* setup early devices and console here as well */
         sh7367_add_early_devices();
diff --git a/arch/arm/mach-shmobile/board-g4evm.c b/arch/arm/mach-shmobile/board-g4evm.c
index 8e3c5559f27f..7719ddc5f591 100644
--- a/arch/arm/mach-shmobile/board-g4evm.c
+++ b/arch/arm/mach-shmobile/board-g4evm.c
@@ -33,6 +33,7 @@
 #include <linux/mmc/host.h>
 #include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/gpio.h>
+#include <linux/dma-mapping.h>
 #include <mach/sh7377.h>
 #include <mach/common.h>
 #include <asm/mach-types.h>
@@ -274,6 +275,8 @@ static struct map_desc g4evm_io_desc[] __initdata = {
 static void __init g4evm_map_io(void)
 {
         iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc));
+        /* DMA memory at 0xf6000000 - 0xffdfffff */
+        init_consistent_dma_size(158 << 20);
 
         /* setup early devices and console here as well */
         sh7377_add_early_devices();
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index 17c19dc25604..de2253d7f157 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -45,6 +45,7 @@
 #include <linux/tca6416_keypad.h>
 #include <linux/usb/r8a66597.h>
 #include <linux/usb/renesas_usbhs.h>
+#include <linux/dma-mapping.h>
 
 #include <video/sh_mobile_hdmi.h>
 #include <video/sh_mobile_lcdc.h>
@@ -1381,6 +1382,8 @@ static struct map_desc mackerel_io_desc[] __initdata = {
 static void __init mackerel_map_io(void)
 {
         iotable_init(mackerel_io_desc, ARRAY_SIZE(mackerel_io_desc));
+        /* DMA memory at 0xf6000000 - 0xffdfffff */
+        init_consistent_dma_size(158 << 20);
 
         /* setup early devices and console here as well */
         sh7372_add_early_devices();
diff --git a/arch/arm/mach-shmobile/include/mach/memory.h b/arch/arm/mach-shmobile/include/mach/memory.h
index ad00c3c258f4..0ffbe8155c76 100644
--- a/arch/arm/mach-shmobile/include/mach/memory.h
+++ b/arch/arm/mach-shmobile/include/mach/memory.h
@@ -4,7 +4,4 @@
 #define PLAT_PHYS_OFFSET        UL(CONFIG_MEMORY_START)
 #define MEM_SIZE        UL(CONFIG_MEMORY_SIZE)
 
-/* DMA memory at 0xf6000000 - 0xffdfffff */
-#define CONSISTENT_DMA_SIZE (158 << 20)
-
 #endif /* __ASM_MACH_MEMORY_H */
diff --git a/arch/arm/mach-spear3xx/spear300_evb.c b/arch/arm/mach-spear3xx/spear300_evb.c
index 69006f694220..a5ff98eed1db 100644
--- a/arch/arm/mach-spear3xx/spear300_evb.c
+++ b/arch/arm/mach-spear3xx/spear300_evb.c
@@ -64,7 +64,7 @@ static void __init spear300_evb_init(void)
 }
 
 MACHINE_START(SPEAR300, "ST-SPEAR300-EVB")
-        .boot_params    =       0x00000100,
+        .atag_offset    =       0x100,
         .map_io         =       spear3xx_map_io,
         .init_irq       =       spear3xx_init_irq,
         .timer          =       &spear3xx_timer,
diff --git a/arch/arm/mach-spear3xx/spear310_evb.c b/arch/arm/mach-spear3xx/spear310_evb.c
index c8684ce1f9b3..45d180d59362 100644
--- a/arch/arm/mach-spear3xx/spear310_evb.c
+++ b/arch/arm/mach-spear3xx/spear310_evb.c
@@ -70,7 +70,7 @@ static void __init spear310_evb_init(void)
 }
 
 MACHINE_START(SPEAR310, "ST-SPEAR310-EVB")
-        .boot_params    =       0x00000100,
+        .atag_offset    =       0x100,
         .map_io         =       spear3xx_map_io,
         .init_irq       =       spear3xx_init_irq,
         .timer          =       &spear3xx_timer,
diff --git a/arch/arm/mach-spear3xx/spear320_evb.c b/arch/arm/mach-spear3xx/spear320_evb.c
index a12b353940d6..22879848d73a 100644
--- a/arch/arm/mach-spear3xx/spear320_evb.c
+++ b/arch/arm/mach-spear3xx/spear320_evb.c
@@ -68,7 +68,7 @@ static void __init spear320_evb_init(void)
 }
 
 MACHINE_START(SPEAR320, "ST-SPEAR320-EVB")
-        .boot_params    =       0x00000100,
+        .atag_offset    =       0x100,
         .map_io         =       spear3xx_map_io,
         .init_irq       =       spear3xx_init_irq,
         .timer          =       &spear3xx_timer,
diff --git a/arch/arm/mach-spear6xx/spear600_evb.c b/arch/arm/mach-spear6xx/spear600_evb.c
index f19cefe91a2b..8238fe38e713 100644
--- a/arch/arm/mach-spear6xx/spear600_evb.c
+++ b/arch/arm/mach-spear6xx/spear600_evb.c
@@ -43,7 +43,7 @@ static void __init spear600_evb_init(void)
 }
 
 MACHINE_START(SPEAR600, "ST-SPEAR600-EVB")
-        .boot_params    =       0x00000100,
+        .atag_offset    =       0x100,
         .map_io         =       spear6xx_map_io,
         .init_irq       =       spear6xx_init_irq,
         .timer          =       &spear6xx_timer,
diff --git a/arch/arm/mach-tcc8k/board-tcc8000-sdk.c b/arch/arm/mach-tcc8k/board-tcc8000-sdk.c
index 4cb3c2dd905c..777a5bb9eed2 100644
--- a/arch/arm/mach-tcc8k/board-tcc8000-sdk.c
+++ b/arch/arm/mach-tcc8k/board-tcc8000-sdk.c
@@ -73,7 +73,7 @@ static void __init tcc8k_map_io(void)
 }
 
 MACHINE_START(TCC8000_SDK, "Telechips TCC8000-SDK Demo Board")
-        .boot_params    = PLAT_PHYS_OFFSET + 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = tcc8k_map_io,
         .init_irq       = tcc8k_init_irq,
         .init_machine   = tcc8k_init,
diff --git a/arch/arm/mach-tegra/board-harmony.c b/arch/arm/mach-tegra/board-harmony.c
index 846cd7d69e3e..a4d1980e697a 100644
--- a/arch/arm/mach-tegra/board-harmony.c
+++ b/arch/arm/mach-tegra/board-harmony.c
@@ -179,7 +179,7 @@ static void __init tegra_harmony_init(void)
 }
 
 MACHINE_START(HARMONY, "harmony")
-        .boot_params  = 0x00000100,
+        .atag_offset    = 0x100,
         .fixup          = tegra_harmony_fixup,
         .map_io         = tegra_map_common_io,
         .init_early     = tegra_init_early,
diff --git a/arch/arm/mach-tegra/board-paz00.c b/arch/arm/mach-tegra/board-paz00.c
index ea2f79c9879b..3197c4cbaa71 100644
--- a/arch/arm/mach-tegra/board-paz00.c
+++ b/arch/arm/mach-tegra/board-paz00.c
@@ -127,7 +127,7 @@ static void __init tegra_paz00_init(void)
 }
 
 MACHINE_START(PAZ00, "Toshiba AC100 / Dynabook AZ")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .fixup          = tegra_paz00_fixup,
         .map_io         = tegra_map_common_io,
         .init_early     = tegra_init_early,
diff --git a/arch/arm/mach-tegra/board-seaboard.c b/arch/arm/mach-tegra/board-seaboard.c
index 56cbabf6aa68..9e98ac706f40 100644
--- a/arch/arm/mach-tegra/board-seaboard.c
+++ b/arch/arm/mach-tegra/board-seaboard.c
@@ -201,7 +201,7 @@ static void __init tegra_wario_init(void)
 
 
 MACHINE_START(SEABOARD, "seaboard")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = tegra_map_common_io,
         .init_early     = tegra_init_early,
         .init_irq       = tegra_init_irq,
@@ -210,7 +210,7 @@ MACHINE_START(SEABOARD, "seaboard")
 MACHINE_END
 
 MACHINE_START(KAEN, "kaen")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = tegra_map_common_io,
         .init_early     = tegra_init_early,
         .init_irq       = tegra_init_irq,
@@ -219,7 +219,7 @@ MACHINE_START(KAEN, "kaen")
 MACHINE_END
 
 MACHINE_START(WARIO, "wario")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = tegra_map_common_io,
         .init_early     = tegra_init_early,
         .init_irq       = tegra_init_irq,
diff --git a/arch/arm/mach-tegra/board-trimslice.c b/arch/arm/mach-tegra/board-trimslice.c
index 89a6d2adc1de..8489aa8f5154 100644
--- a/arch/arm/mach-tegra/board-trimslice.c
+++ b/arch/arm/mach-tegra/board-trimslice.c
@@ -171,7 +171,7 @@ static void __init tegra_trimslice_init(void)
 }
 
 MACHINE_START(TRIMSLICE, "trimslice")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .fixup          = tegra_trimslice_fixup,
         .map_io         = tegra_map_common_io,
         .init_early     = tegra_init_early,
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index 399c89f14dfb..376b6dfdfae9 100644
--- a/arch/arm/mach-u300/core.c
+++ b/arch/arm/mach-u300/core.c
@@ -25,6 +25,7 @@
 #include <linux/err.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/fsmc.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/types.h>
 #include <asm/setup.h>
@@ -92,6 +93,8 @@ static struct map_desc u300_io_desc[] __initdata = {
 void __init u300_map_io(void)
 {
         iotable_init(u300_io_desc, ARRAY_SIZE(u300_io_desc));
+        /* We enable a real big DMA buffer if need be. */
+        init_consistent_dma_size(SZ_4M);
 }
 
 /*
diff --git a/arch/arm/mach-u300/include/mach/memory.h b/arch/arm/mach-u300/include/mach/memory.h
index 888e2e351ee1..7034bae95de6 100644
--- a/arch/arm/mach-u300/include/mach/memory.h
+++ b/arch/arm/mach-u300/include/mach/memory.h
@@ -16,7 +16,7 @@
 #ifdef CONFIG_MACH_U300_DUAL_RAM
 
 #define PLAT_PHYS_OFFSET                UL(0x48000000)
-#define BOOT_PARAMS_OFFSET      (PHYS_OFFSET + 0x100)
+#define BOOT_PARAMS_OFFSET              0x100
 
 #else
 
@@ -24,19 +24,14 @@
 #define PLAT_PHYS_OFFSET (0x28000000 + \
              (CONFIG_MACH_U300_ACCESS_MEM_SIZE - \
              (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024)
+#define BOOT_PARAMS_OFFSET (0x100 + \
+             (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1)*1024*1024*2)
 #else
 #define PLAT_PHYS_OFFSET (0x28000000 + \
              (CONFIG_MACH_U300_ACCESS_MEM_SIZE +        \
              (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024)
+#define BOOT_PARAMS_OFFSET 0x100
 #endif
-#define BOOT_PARAMS_OFFSET (0x28000000 + \
-            (CONFIG_MACH_U300_ACCESS_MEM_SIZE +         \
-            (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024 + 0x100)
 #endif
 
-/*
- * We enable a real big DMA buffer if need be.
- */
-#define CONSISTENT_DMA_SIZE SZ_4M
-
 #endif
diff --git a/arch/arm/mach-u300/u300.c b/arch/arm/mach-u300/u300.c
index 48b3b7f39966..80e7305589c6 100644
--- a/arch/arm/mach-u300/u300.c
+++ b/arch/arm/mach-u300/u300.c
@@ -61,7 +61,7 @@ static void __init u300_init_machine(void)
 
 MACHINE_START(U300, MACH_U300_STRING)
         /* Maintainer: Linus Walleij <linus.walleij@stericsson.com> */
-        .boot_params    = BOOT_PARAMS_OFFSET,
+        .atag_offset    = BOOT_PARAMS_OFFSET,
         .map_io         = u300_map_io,
         .reserve        = u300_reserve,
         .init_irq       = u300_init_irq,
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index cd54abaccd96..2cc4876db212 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -645,7 +645,7 @@ static void __init mop500_init_machine(void)
 
 MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
         /* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
-        .boot_params    = 0x100,
+        .atag_offset    = 0x100,
         .map_io         = u8500_map_io,
         .init_irq       = ux500_init_irq,
         /* we re-use nomadik timer here */
@@ -654,7 +654,7 @@ MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
 MACHINE_END
 
 MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
-        .boot_params    = 0x100,
+        .atag_offset    = 0x100,
         .map_io         = u8500_map_io,
         .init_irq       = ux500_init_irq,
         .timer          = &ux500_timer,
@@ -662,7 +662,7 @@ MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
 MACHINE_END
 
 MACHINE_START(SNOWBALL, "Calao Systems Snowball platform")
-        .boot_params    = 0x100,
+        .atag_offset    = 0x100,
         .map_io         = u8500_map_io,
         .init_irq       = ux500_init_irq,
         /* we re-use nomadik timer here */
diff --git a/arch/arm/mach-ux500/board-u5500.c b/arch/arm/mach-ux500/board-u5500.c
index e58f0f562426..166d47a5f4f3 100644
--- a/arch/arm/mach-ux500/board-u5500.c
+++ b/arch/arm/mach-ux500/board-u5500.c
@@ -118,7 +118,7 @@ static void __init u5500_init_machine(void)
 }
 
 MACHINE_START(U5500, "ST-Ericsson U5500 Platform")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = u5500_map_io,
         .init_irq       = ux500_init_irq,
         .timer          = &ux500_timer,
diff --git a/arch/arm/mach-versatile/versatile_ab.c b/arch/arm/mach-versatile/versatile_ab.c
index f8ae64b3eed0..fda4866703cd 100644
--- a/arch/arm/mach-versatile/versatile_ab.c
+++ b/arch/arm/mach-versatile/versatile_ab.c
@@ -35,7 +35,7 @@
 
 MACHINE_START(VERSATILE_AB, "ARM-Versatile AB")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = versatile_map_io,
         .init_early     = versatile_init_early,
         .init_irq       = versatile_init_irq,
diff --git a/arch/arm/mach-versatile/versatile_pb.c b/arch/arm/mach-versatile/versatile_pb.c
index 37c23dfeefb7..feaf9cbe60f6 100644
--- a/arch/arm/mach-versatile/versatile_pb.c
+++ b/arch/arm/mach-versatile/versatile_pb.c
@@ -103,7 +103,7 @@ static void __init versatile_pb_init(void)
 
 MACHINE_START(VERSATILE_PB, "ARM-Versatile PB")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = versatile_map_io,
         .init_early     = versatile_init_early,
         .init_irq       = versatile_init_irq,
diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c
index d0d267a8d3f9..1fafc3244607 100644
--- a/arch/arm/mach-vexpress/v2m.c
+++ b/arch/arm/mach-vexpress/v2m.c
@@ -443,7 +443,7 @@ static void __init v2m_init(void)
 }
 
 MACHINE_START(VEXPRESS, "ARM-Versatile Express")
-        .boot_params    = PLAT_PHYS_OFFSET + 0x00000100,
+        .atag_offset    = 0x100,
         .map_io         = v2m_map_io,
         .init_early     = v2m_init_early,
         .init_irq       = v2m_init_irq,
diff --git a/arch/arm/mach-vt8500/bv07.c b/arch/arm/mach-vt8500/bv07.c
index 94a261d86bf0..a464c7584411 100644
--- a/arch/arm/mach-vt8500/bv07.c
+++ b/arch/arm/mach-vt8500/bv07.c
@@ -68,7 +68,7 @@ void __init bv07_init(void)
 }
 
 MACHINE_START(BV07, "Benign BV07 Mini Netbook")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .reserve        = vt8500_reserve_mem,
         .map_io         = vt8500_map_io,
         .init_irq       = vt8500_init_irq,
diff --git a/arch/arm/mach-vt8500/wm8505_7in.c b/arch/arm/mach-vt8500/wm8505_7in.c
index e73aadbcafd6..cf910a956080 100644
--- a/arch/arm/mach-vt8500/wm8505_7in.c
+++ b/arch/arm/mach-vt8500/wm8505_7in.c
@@ -68,7 +68,7 @@ void __init wm8505_7in_init(void)
 }
 
 MACHINE_START(WM8505_7IN_NETBOOK, "WM8505 7-inch generic netbook")
-        .boot_params    = 0x00000100,
+        .atag_offset    = 0x100,
         .reserve        = wm8505_reserve_mem,
         .map_io         = wm8505_map_io,
         .init_irq       = wm8505_init_irq,
diff --git a/arch/arm/mach-w90x900/mach-nuc910evb.c b/arch/arm/mach-w90x900/mach-nuc910evb.c
index 30fccde94fb8..31c109018228 100644
--- a/arch/arm/mach-w90x900/mach-nuc910evb.c
+++ b/arch/arm/mach-w90x900/mach-nuc910evb.c
@@ -34,7 +34,6 @@ static void __init nuc910evb_init(void)
 
 MACHINE_START(W90P910EVB, "W90P910EVB")
         /* Maintainer: Wan ZongShun */
-        .boot_params    = 0,
         .map_io         = nuc910evb_map_io,
         .init_irq       = nuc900_init_irq,
         .init_machine   = nuc910evb_init,
diff --git a/arch/arm/mach-w90x900/mach-nuc950evb.c b/arch/arm/mach-w90x900/mach-nuc950evb.c
index 590c99b96dc1..4062e55a57d8 100644
--- a/arch/arm/mach-w90x900/mach-nuc950evb.c
+++ b/arch/arm/mach-w90x900/mach-nuc950evb.c
@@ -37,7 +37,6 @@ static void __init nuc950evb_init(void)
 
 MACHINE_START(W90P950EVB, "W90P950EVB")
         /* Maintainer: Wan ZongShun */
-        .boot_params    = 0,
         .map_io         = nuc950evb_map_io,
         .init_irq       = nuc900_init_irq,
         .init_machine   = nuc950evb_init,
diff --git a/arch/arm/mach-w90x900/mach-nuc960evb.c b/arch/arm/mach-w90x900/mach-nuc960evb.c
index e09c645d61b6..0ab9995d5b58 100644
--- a/arch/arm/mach-w90x900/mach-nuc960evb.c
+++ b/arch/arm/mach-w90x900/mach-nuc960evb.c
@@ -34,7 +34,6 @@ static void __init nuc960evb_init(void)
 
 MACHINE_START(W90N960EVB, "W90N960EVB")
         /* Maintainer: Wan ZongShun */
-        .boot_params    = 0,
         .map_io         = nuc960evb_map_io,
         .init_irq       = nuc900_init_irq,
         .init_machine   = nuc960evb_init,
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 0a0a1e7c20d2..50be842e89fd 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -18,12 +18,14 @@
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
 #include <linux/highmem.h>
+#include <linux/slab.h>
 
 #include <asm/memory.h>
 #include <asm/highmem.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 #include <asm/sizes.h>
+#include <asm/mach/arch.h>
 
 #include "mm.h"
 
@@ -117,26 +119,37 @@ static void __dma_free_buffer(struct page *page, size_t size)
 }
 
 #ifdef CONFIG_MMU
-/* Sanity check size */
-#if (CONSISTENT_DMA_SIZE % SZ_2M)
-#error "CONSISTENT_DMA_SIZE must be multiple of 2MiB"
-#endif
 
-#define CONSISTENT_OFFSET(x)    (((unsigned long)(x) - CONSISTENT_BASE) >> PAGE_SHIFT)
-#define CONSISTENT_PTE_INDEX(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PGDIR_SHIFT)
-#define NUM_CONSISTENT_PTES (CONSISTENT_DMA_SIZE >> PGDIR_SHIFT)
+
+#define CONSISTENT_OFFSET(x)    (((unsigned long)(x) - consistent_base) >> PAGE_SHIFT)
+#define CONSISTENT_PTE_INDEX(x) (((unsigned long)(x) - consistent_base) >> PGDIR_SHIFT)
 
 /*
  * These are the page tables (2MB each) covering uncached, DMA consistent allocations
  */
-static pte_t *consistent_pte[NUM_CONSISTENT_PTES];
+static pte_t **consistent_pte;
+
+#define DEFAULT_CONSISTENT_DMA_SIZE SZ_2M
+
+unsigned long consistent_base = CONSISTENT_END - DEFAULT_CONSISTENT_DMA_SIZE;
+
+void __init init_consistent_dma_size(unsigned long size)
+{
+        unsigned long base = CONSISTENT_END - ALIGN(size, SZ_2M);
+
+        BUG_ON(consistent_pte); /* Check we're called before DMA region init */
+        BUG_ON(base < VMALLOC_END);
+
+        /* Grow region to accommodate specified size  */
+        if (base < consistent_base)
+                consistent_base = base;
+}
 
 #include "vmregion.h"
 
 static struct arm_vmregion_head consistent_head = {
         .vm_lock        = __SPIN_LOCK_UNLOCKED(&consistent_head.vm_lock),
         .vm_list        = LIST_HEAD_INIT(consistent_head.vm_list),
-        .vm_start       = CONSISTENT_BASE,
         .vm_end         = CONSISTENT_END,
 };
 
@@ -155,7 +168,17 @@ static int __init consistent_init(void)
         pmd_t *pmd;
         pte_t *pte;
         int i = 0;
-        u32 base = CONSISTENT_BASE;
+        unsigned long base = consistent_base;
+        unsigned long num_ptes = (CONSISTENT_END - base) >> PGDIR_SHIFT;
+
+        consistent_pte = kmalloc(num_ptes * sizeof(pte_t), GFP_KERNEL);
+        if (!consistent_pte) {
+                pr_err("%s: no memory\n", __func__);
+                return -ENOMEM;
+        }
+
+        pr_debug("DMA memory: 0x%08lx - 0x%08lx:\n", base, CONSISTENT_END);
+        consistent_head.vm_start = base;
 
         do {
                 pgd = pgd_offset(&init_mm, base);
@@ -198,7 +221,7 @@ __dma_alloc_remap(struct page *page, size_t size, gfp_t gfp, pgprot_t prot)
         size_t align;
         int bit;
 
-        if (!consistent_pte[0]) {
+        if (!consistent_pte) {
                 printk(KERN_ERR "%s: not initialised\n", __func__);
                 dump_stack();
                 return NULL;
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index cc7e2d8be9aa..34409a08ba0d 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -653,9 +653,6 @@ void __init mem_init(void)
                         "    ITCM    : 0x%08lx - 0x%08lx   (%4ld kB)\n"
 #endif
                         "    fixmap  : 0x%08lx - 0x%08lx   (%4ld kB)\n"
-#ifdef CONFIG_MMU
-                        "    DMA     : 0x%08lx - 0x%08lx   (%4ld MB)\n"
-#endif
                         "    vmalloc : 0x%08lx - 0x%08lx   (%4ld MB)\n"
                         "    lowmem  : 0x%08lx - 0x%08lx   (%4ld MB)\n"
 #ifdef CONFIG_HIGHMEM
@@ -674,9 +671,6 @@ void __init mem_init(void)
                         MLK(ITCM_OFFSET, (unsigned long) itcm_end),
 #endif
                         MLK(FIXADDR_START, FIXADDR_TOP),
-#ifdef CONFIG_MMU
-                        MLM(CONSISTENT_BASE, CONSISTENT_END),
-#endif
                         MLM(VMALLOC_START, VMALLOC_END),
                         MLM(PAGE_OFFSET, (unsigned long)high_memory),
 #ifdef CONFIG_HIGHMEM
@@ -699,9 +693,6 @@ void __init mem_init(void)
          * be detected at build time already.
          */
 #ifdef CONFIG_MMU
-        BUILD_BUG_ON(VMALLOC_END                        > CONSISTENT_BASE);
-        BUG_ON(VMALLOC_END                              > CONSISTENT_BASE);
-
         BUILD_BUG_ON(TASK_SIZE                          > MODULES_VADDR);
         BUG_ON(TASK_SIZE                                > MODULES_VADDR);
 #endif
diff --git a/arch/arm/plat-mxc/include/mach/memory.h b/arch/arm/plat-mxc/include/mach/memory.h
index 11be5cdbdd1a..3ec84b902243 100644
--- a/arch/arm/plat-mxc/include/mach/memory.h
+++ b/arch/arm/plat-mxc/include/mach/memory.h
@@ -40,19 +40,4 @@
 # endif
 #endif
 
-#if defined(CONFIG_MX3_VIDEO)
-/*
- * Increase size of DMA-consistent memory region.
- * This is required for mx3 camera driver to capture at least two QXGA frames.
- */
-#define CONSISTENT_DMA_SIZE SZ_8M
-
-#elif defined(CONFIG_MX1_VIDEO) || defined(CONFIG_VIDEO_MX2_HOSTSUPPORT)
-/*
- * Increase size of DMA-consistent memory region.
- * This is required for i.MX camera driver to capture at least four VGA frames.
- */
-#define CONSISTENT_DMA_SIZE SZ_4M
-#endif /* CONFIG_MX1_VIDEO || CONFIG_VIDEO_MX2_HOSTSUPPORT */
-
 #endif /* __ASM_ARCH_MXC_MEMORY_H__ */
diff --git a/arch/arm/plat-omap/include/plat/io.h b/arch/arm/plat-omap/include/plat/io.h
index d72ec85c97e6..ebe67ea8d068 100644
--- a/arch/arm/plat-omap/include/plat/io.h
+++ b/arch/arm/plat-omap/include/plat/io.h
@@ -309,6 +309,8 @@ extern void omap2_init_common_devices(struct omap_sdrc_params *sdrc_cs0,
 void __iomem *omap_ioremap(unsigned long phys, size_t size, unsigned int type);
 void omap_iounmap(volatile void __iomem *addr);
 
+extern void __init omap_init_consistent_dma_size(void);
+
 #endif
 
 #endif
diff --git a/arch/arm/plat-omap/include/plat/memory.h b/arch/arm/plat-omap/include/plat/memory.h
index e6720aa2d553..7f9df6f1e113 100644
--- a/arch/arm/plat-omap/include/plat/memory.h
+++ b/arch/arm/plat-omap/include/plat/memory.h
@@ -85,18 +85,5 @@
 
 #endif  /* CONFIG_ARCH_OMAP15XX */
 
-/* Override the ARM default */
-#ifdef CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE
-
-#if (CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE == 0)
-#undef CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE
-#define CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE 2
-#endif
-
-#define CONSISTENT_DMA_SIZE \
-        (((CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE + 1) & ~1) * 1024 * 1024)
-
-#endif
-
 #endif
 
diff --git a/arch/arm/plat-omap/io.c b/arch/arm/plat-omap/io.c
index f1ecfa9fc61d..e9b0e23edd0a 100644
--- a/arch/arm/plat-omap/io.c
+++ b/arch/arm/plat-omap/io.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/io.h>
 #include <linux/mm.h>
+#include <linux/dma-mapping.h>
 
 #include <plat/omap7xx.h>
 #include <plat/omap1510.h>
@@ -139,3 +140,10 @@ void omap_iounmap(volatile void __iomem *addr)
                 __iounmap(addr);
 }
 EXPORT_SYMBOL(omap_iounmap);
+
+void __init omap_init_consistent_dma_size(void)
+{
+#ifdef CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE
+        init_consistent_dma_size(CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE << 20);
+#endif
+}
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 0f857782d06f..fbe38f2e8edb 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5758,6 +5758,7 @@ struct pmu *perf_init_event(struct perf_event *event)
         pmu = idr_find(&pmu_idr, event->attr.type);
         rcu_read_unlock();
         if (pmu) {
+                event->pmu = pmu;
                 ret = pmu->event_init(event);
                 if (ret)
                         pmu = ERR_PTR(ret);
@@ -5765,6 +5766,7 @@ struct pmu *perf_init_event(struct perf_event *event)
         }
 
         list_for_each_entry_rcu(pmu, &pmus, entry) {
+                event->pmu = pmu;
                 ret = pmu->event_init(event);
                 if (!ret)
                         goto unlock;
@@ -5891,8 +5893,6 @@ done:
                 return ERR_PTR(err);
         }
 
-        event->pmu = pmu;
-
         if (!event->parent) {
                 if (event->attach_state & PERF_ATTACH_TASK)
                         jump_label_inc(&perf_sched_events);